Changes since last update:
#5075 fix typo
#5080 Version 1.0.473
#5081 Fixes typo in promises implementation for legacy browsers
#5078 Optimize Ref_toString().
#5083 Initialize PDFView.url = ''
#5034 [SVG] Adds clip operator, fixes setGState, fill, stroke operators
#5074 Use Array.join to build up strings in readPostScriptTable().
#5077 Fix loading of PDF files with invalid or missing Type3 characters (issue 5039)
#5088 Stop including cidmaps.js
#5023 Re-factor parsing of the Linearization dictionary
#5063 Avoid creating intermediate strings in the PostScriptLexer
#5096 Right-size |chars.length| and |type.length| in bidi().
#5099 Add a reduced test-case for bug 1027533
#5059 Removing unused code and enforcing additional JSHint options
#5090 Re-run feature detection after downgrading the Chromium browser.
#5103 Add a reduced test-case for issue 4800
#5104 Use CSS.supports instead of '..' in ....style
#5082 Managed preferences for Chrome administrators
#5106 Attempt to fix Travis
#5105 Add a couple of reduced test-cases for PR 4259
#5101 Avoid expensive for..in loops involving CMaps
#5109 Use strict equalities in test/*
#5110 Fix JBIG2 decoding issue #5026
#5108 Use strict equalities in web/*
#5112 Add strict equalities in src/shared/*
#5113 Add strict equalities in src/display/*
#5116 Add strict equalities in src/core/* (part 1)
#5119 Use strict equalities in make.js, external/* and extensions/*
#5121 Use strict equalities in src/core/{image, jpx, jpg, jbig2}.js
#5120 Add strict equalities in src/core/* (part 2)
#5125 Add strict equalities in src/core/* (part 3)
#5122 Enforce strict equalities with JSHint
#5127 Fix issue where pdfDocument is null
#5129 Add reduced test-cases for issues 4875 and 4881
#5111 Represent cid chars using integers, not strings.
#5136 Properly set this.eof in CCITTFaxStream
#5134 Improves speed of the functions
#5008 Make QueueOptimizer easier to read.
#5095 Adjust the heuristics to recognize more cases of unknown glyphs for |toUnicode| (issue 5070)
#5007 Converting PDFFindBar and PDFFindController to classes
#5071 Optimize a font-heavy document
#5141 Fixes lint errors
#5140 Removes some bind() calls from fetchAsync
#5137 Optimize TextLayerBuilder_renderLayer() for text heavy documents.
#5135 Make IdentityCMaps more compact.
#5100 Load file:-URLs in the main thread.
#5142 Fixes text-selection example
#5143 Simplify text-selection example.
#5145 Revert commit 9a41659 (PR 5005) for breaking the loading of certain PDF files in the Firefox addon when range requests are active
#5149 Fixes CCITTFaxStream regression
#5114 Faster JBIG2 bitmap decoding
#5158 Change Rob's email address
#5157 Disable spellcheck in Chromium's URL popup
#5151 Avoid repeated creation of a simple RegExp object.
#5156 Fixes a regression from PR 4982
#5153 Preserve reference fragment in Chromium URL router
#5154 AES cipher: make padding optional
#5162 [SVG] Reduces amount of used memory during PNG creation.
#5147 [SVG] Adds image and mask features, fixes clippath
#5164 Nit fixes for svg.js
#5150 Fix #4935
#5160 only convert in IE9 if the requested responseType is actually an arraybu...
#5163 Refactoring of OpenType/TrueType font construction
#5166 Remove old unused code from PDFView.close()
#5170 [SVG] Uses float number formatter to print numbers in SVG
#5171 Fix typo
#5169 Attempt to display the File size quicker in the Document Properties dialog
#5175 Disable the "Go to First/Last Page" buttons when the first/last page is currently active
#5174 Add even more unit tests for the API
#5172 Avoid an allocation in readCharCode().
#5177 Remove two instances of leftover console.log debug statements
#5179 Miscellaneous code improvements for svg.js
#5180 Minor changes for api.js, font_loader.js and svg.js
#5183 Adds width at the beginning of the Type2 charstring
#5185 Fix CMap unit tests
#5182 SVG Command line tool for exporting output
#5188 Refactors some SVG api and includes svg.js in the build
#5184 Use cff glyph width in the hmtx table
#5191 Right-size the array in getSampleArray().
#5168 Avoid unnecessary array allocations in EvaluatorPreprocessor_read().
#5187 Reduce ASCII checks in makeInlineImage().
#5186 Fix the error handling for CMaps that fail to load
#5181 Optimizes defaults for svg.js
#5165 implement CalRGB color space
#5192 Ignore setGState no-ops.
#5194 Remove position: absolute from text divs.
#5195 Add unit test for PDF file loaded as typed array
#5198 Implements paintFormXObject in svg.js
#5199 Bug 1054590 - [pdf.js] Update to use gaia-header
#5200 CalRGB: optimize CalRGB calculations
#5201 Small re-factoring of DocumentProperties
#5205 Remove setGStateForKey() closure.
#5193 Only use data-font-name attributes when necessary.
#5210 Fixes Type3 negative font direction
#5208 Debounces scroll events in web viewer.
#5212 Fix ensureByte() function name (copy-and-paste error)
#5204 Apply the GRAYSCALE_1BPP optimization when needsDecode is set.