Fixes cmap sanitizer fro #215
update manifest of hmm.pdf
Removes isOS2Valid; resets fsType
Adding lt l10n
Regression test for issue 2842
Scroll the Thumbnail of the current page into view when exiting fullscreen mode
Merge pull request #2918 from vyv03354/test2842

Regression test for issue 2842
Adds optional Shift for zoom keybindings
Merge pull request #2926 from yurydelendik/shift-zoom

Adds optional Shift for zoom keybindings
Add support for blend modes.
Fix issue with 'this' binding in PdfStreamConverter
Merge pull request #2915 from dummas/master

Added additional language
Merge pull request #2903 from brendandahl/blend-modes

Add support for blend modes.
Merge pull request #2913 from yurydelendik/combine-os2valid

Removes isOS2Valid; resets fsType
Rewrite and refactor getVisibleElements() to make it more generic - address comments by @brendandahl
Handles embed tags via PlayPreview API
Fix the calculation of default vertical metrics

Fixes bug 849627 and 849628.
The current code was obviously wrong per the spec 9.7.4.3.
Merge pull request #2932 from vyv03354/bug849627

Fix the calculation of default vertical metrics
Store references as pngs and write failures to separate png files.
Merge pull request #2920 from Snuffleupagus/thumbnail-on-fullscreen-close

Scroll the Thumbnail of the current page into view when exiting fullscreen mode