Changes:
#7236 Release of 1.5.188
#7237 Prevent accidentally overriding the error function in the commonobj messageHandler in api.js (issue 7232)
#7130 Add element to text layer even if width === 0
#7241 Makes importl10n and server async gulp functions.
#7202 Refactors dependencies of PDFViewerApplication on external services
#7240 Moves bundle target/task to gulpfile.js
#7251 Makes defines parameter non-optional in createBundle.
#7255 Mention web application usage in README.md
#7256 Port the publish target to Gulp
#7262 Fixes weird loop in the bidi.js.
#7254 Introducing EventBus for the viewer UI.
#7268 Better components examples.
#7266 Removes circular dependency of secondary toolbar on app.js.
#7272 Adds post UI control change events.
#7273 Prevent "Prefixed Fullscreen API is deprecated." warnings in the MOZCENTRAL version (issue 7270)
#7279 Fixes unneed conversion to array in CFF encodeInteger.
#7260 Moves all testing into gulpfile.
#7281 Fixes some static analysis warnings and recommendations
#7242 [Bug 1194700] Ensure that the customScaleOption is hidden in e10s
#7285 Split the font_spec.js unit-tests into cff_parser_spec.js and type1_parser_spec.js
#7298 Update link to CONTRIBUTING.md
#7301 Update grab_to_pan.js
#7302 Ignore 'endobj' commands inside of ObjStm streams (issue 5241, bug 898610, bug 1037816)
#7299 Prevent intermittent "Node was not found" errors when removing the zoomLayer in PDFPageView_draw
#7305 Remove streamsPrivate usage
#7244 Don't use shadow DOM for rendering /
#7306 Enables debugger only when needed.
#7289 Disable pagechange event if page is not changing.
#7295 Use Dict_getArray in more places in src/core/ to avoid issues when Arrays contain indirect objects
#7313 Convert the secondary toolbar to a class
#7317 Moves DEFAULT_PREFENCES into JSON format.
#7315 Solving issue #7307, 'use strict' context in compatibility.js
#7332 Fixes AMD name in web/the pdf_viewer.js.
#7337 Attempt to combine text runs positioned with setTextMatrix
#7340 Add basic unit-tests for unicode.js
#7316 Remove unused variables
#7300 Prevent adding invalid values in CFFDict_setByKey (bug 1068432)
#7344 Remove support for frames in old Chromium versions
#7353 Resolve a regression in the Chromium extension's preferences handling
#7346 Support syncing of settings in Chrome extension
#7352 Let non-viewable Popup Annotations inherit the parent's Annotation Flags if the parent is viewable
#7362 Github -> GitHub
#7374 Fix errors in setGState in PartialEvaluator_getTextContent that prevents text-selection from working properly
#7370 Add opt-out telemetry to the Chrome extension
#7388 Fix typo in telemetry.js, follow-up to #7370
#7361 Attempt to recover valid format 3 FDSelect data from broken CFF fonts (bug 1146106)
#7389 Move the isSpace utility function from core/parser.js to shared/util.js
#7341 [api-minor] Improve handling of links that are using explicit destination arrays
#7404 Force inline block display style for .
#7400 [Firefox addon] Change the minimum supported version to Firefox 38 and remove a bunch old no longer necessary fallback code
#7428 Unbreak the importl10n command by updating the links to point to hg.mozilla.org instead of mxr
#7430 Move Chromium URL rewrite to top of viewer.js
#7409 Upstream the changes from Bug 1242730 - Convert callsites to use channel.async0pen2() within browser/extensions/pdfjs (issue 7386)
#7437 [Firefox addon] Feature detect originAttributes to make it Seamonkey 2.40 compatible
#7427 Skip mapping of glyphs to Unicode "Ideographic space" (issue 7416)
#7438 Update README.md to only guarantee Firefox addon compatibility with the current ESR version
#7390 Add upper-case I as a possible space replacement fallback in Font.spaceWidth to improve text-selection (issue 7180)
#7463 Add back moz-specific fullscreen support code for MOZCENTRAL builds (bug 1268749, PR 7273 follow-up)
#7467 Add a getAttachments unit-test for a PDF file that actually contains attachments
#7441 Fallback to attempt to recover standard glyph names when amending the charCodeToGlyphId with entries from the differences array in type1FontGlyphMapping (issue 7439)
#7473 Update mxr.mozilla.org links to point to dxr.mozilla.org instead
#7453 Expose the text widget's maximum length.
#7455 Ensure that the necessary src/* dependencies are loaded before the viewer, when it's run with gulp server (issue 7448)
#7458 Consolidate updating of various Toolbar state (e.g. page and scale) in one method in PDFViewerApplication
#7479 Change the warn to info in recoverGlyphName to reduce the console spam
#7466 Remove handling of fallback arguments from PDFViewerApplication.open
#7480 Remove the obsolete MozBlobBuilder fallback from the createBlob utility function
#7481 [Firefox addon] Remove compatibility.js
#7478 optimize png images using zopflipng
#7489 trivial spelling fixes
#7485 Ensure that we don't reset the current page view if the user inputs an invalid page number (PR 7289 follow-up)
#7493 Catch errors and continue parsing in parseCMap (issue 7492)
#7490 Don't map glyphs to the Lepcha Unicode block (issue 7426)
#7447 Ignore .notdef in thedifferencesarray when building a fallback toUnicode map in PartialEvaluator_buildToUnicode (issue 5256)
#7347 Slightly refactor thefontRefhandling in PartialEvaluator_loadFont (issue 7403 and issue 7402)
#7505 Use the latest stable Node.js version on Travis CI and enable caching
#7506 Prevent errors when parsing Annotations with missing (or invalid) /Subtype entries (issue 7446)
#7475 [api-minor] Add a parameter to PDFPageProxy_getTextContent that controls whether PartialEvaluator_getTextContent will attempt to combine same line text items
#7502 Remove the previousPageNumber parameter from the pagechanging/pagechange events, and stop dispatching the events if the input is out of bounds
#7510 Remove previousPageNumber from the B2G viewer
#7511 Convert the B2G viewer from an extension to an example
#7519 Stop building the AMO extension
#7520 Add more unit-tests for primitives.js
#7526 Add validation of the rotation argument passed to set pagesRotation in PDFViewer
#7529 Log an error when the value passed to set currentPageNumber is out of bounds (PR 7502 followup)
#7532 Remove an obsolete comment for onAfterDraw in pdf_viewer.js
#7534 Add a parameter to the isName function that enables checking not just that something is a Name, but also that the actual name properties matches
#7548 Avoid window.print in a microtask
#7521 Bug 1291709 - PdfjsChromeUtils.jsm leaks browser.xul windows.
#7555 Add unit-tests for asynchronous methods in primitives.js
#7330 Try to prevent CanvasGraphics_getSinglePixelWidth from intermittently returning incorrect values in Firefox (issue 7188)
#7563 Upstream l10n changes from Bug 1259859.
#7573 [mobile-viewer] Add an async close method to the example, and change open to also be async (issue 7571)
#7540 Add a unit-test to check that ProblematicCharRanges contains valid entries
#7574 Remove unused globals from fonts unit test file
#7570 Create a fallback annotation id for entries in Annots dictionaries that are not indirect objects (issue 7569)
#7440 Prevent destinations with bad left/top values from scrolling the wrong page into view (bug 874482)
#7575 Update translations
#7387 Attempt to ignore multiple identical Tf (setFont) commands in PartialEvaluator_getTextContent (issue 5808)
#7579 Ensure that the zoom buttons are disabled correctly if the scale is smaller/larger than MIN_SCALE/MAX_SCALE in PDFViewerApplication._updateUIToolbar
#7583 Change the GoToPage Named Action to select the contents of the pageNumber input, rather than just focusing the element
#7539 [api-minor] Expanding divs to improve selection
#7585 Minor code style improvements after #7539
#7586 Move the Preferences initialization/fetching code to the top of PDFViewerApplication.initialize, and add a enhanceTextSelection preference to the viewer
#7592 Revert the commits from pull request #7586 for causing addon issues
#7407 Assign the quantizationTables after parsing the entire JPEG image, to prevent issues when the DQT (Define Quantization Tables) marker is encountered after SOF{n} (Start of Frame) markers (issue 7406)
#7591 Change src/core/jpg.js to use the error utility function instead of throwing
#7588 Use a WeakMap in src/display/text_layer.js
#7595 In display/api.js ensure that we always reject with an Error in JpegDecode, and adjust a couple of other rejection sites as well
#7596 Improve the structure for widget annotations
#7602 Render interactive form (AcroForm) text widget annotations
#7619 Only update the max-height of the SecondaryToolbar when it's actually visible
#7609 Add a enhanceTextSelection preference
#7600 Check that Type1C fonts does not actually contain OpenType font files (issue 7598)
#7546 Don't duplicate the first entry in the charCodeToGlyphId map for CIDFontType2 fonts with a CIDToGIDMap that already mapped the first entry to a non-zero glyphId (issue 7544)
#7621 Add a couple more, mostly text, reference tests for non-embedded symbolic fonts without included encoding information
#7622 Text widget annotations: implement maximum length and text alignment
#7624 Adding "proper" message port for fake worker.
#7623 Change src/core/jpx.js to use the error utility function instead of using throw new Error
#7626 Fix lint warnings in URL polyfill
#7629 Text widget annotations: implement unit testing and sanitize data values
#7634 Remove the deprecated mozDash/mozDashOffset canvas 2D context methods
#7632 [EnhanceTextSelection] Make expandTextDivs more efficient by updating all styles at once instead of piecewise
#7636 Drops unneeded HTTP refresh header for the extension.
#7550 For embedded Type1 fonts without included ToUnicode/Encoding data, attempt to improve text selection by using the builtInEncoding to amend the toUnicode map (issue 6901, issue 7182, issue 7217, bug 917796, bug 1242142)
#7633 Text widget annotations: support read-only/multiline fields and improve testing
#7645 Prevent rendering TextWidgetAnnotations in both the core/display layer (issue 7643)
#7640 Interactive forms: remove global PDFJS usage
#7642 Deduct file type from content-disposition if needed
#7639 Replace empty CharStrings with '.notdef' in Type1Font_wrap to prevent OTS from rejecting the font (bug 1252420)
#7652 Prevent errors if the 'resize' event is fired before the eventBus has been initialized
#7647 Ensure that test/driver.js actually takes the same Annotation code-path as the viewer when running forms tests (PR 7633 follow-up)
#7649 Text widget annotations: implement comb support
#7661 Respect the 'ColorTransform' entry in the image dictionary when decoding JPEG images (bug 956965, issue 6574)
#7181 Simplified wheel processing
#7653 Bug 1300878 - Add support for touch-swiping between pages in presentation mode
#7656 Attempt to skip zero bytes at the end of Scan blocks when decoding JPEG images (issue 4090)
#7618 fixing #7590 by delaying div shrink after mouse up
#7681 Add a unit-test for annotations where the URI action has an incorrect encoding (bug 1122280, PR 5999)
#7691 Version 1.6