Most relevant commits:
- compiler: always allow extended syntax in templates
- compiler/parser: make ParseSource function unexported
- compiler: split CompileProgram func in CompileProgram and CompileScript
- all: prefer 'script' to 'package-less program'
- compiler: use extended syntax in scripts
- all: prefer 'global' to 'builtin' for not Go builtins
- scriggo: add 'scripts' package and move code from the 'scriggo' package
- script: pass variable values as first argument to the Run function
- all: prefer 'packages' to 'loaders' and 'importers' for PackageLoader
- compiler/parser: fix panic parsing invalid token after template switch
- compiler/emitter: fix emitting of extending files with declarations
- compiler/parser: fix error message for case not in switch or select
- compiler/parser: fix panic importing and then showing the same file
- compiler/parser: check cycles before the already parsed check
- compiler/parser: fix 'extends' statement preceded by not empty text
- compiler/parser: fix panic showing an invalid path
- compiler/parser: add {% show(expr) %} statement
- compiler/checker: fix checking of partial files