Prevent font error when no preferred cmap table is found (workaround for issue 4800)
Added more preference variables from the available hash parameters
Removes mozResponseArrayBuffer
Disables worker if XHR does not support arraybuffer
Prevent adding undefined array entries to CMap.map in mapRangeToArray (issue 4875)
PdfRedirector checks if plugin is still in PlayPreview mode
Merge pull request #4877 from yurydelendik/redircheck

PdfRedirector checks if plugin is still in PlayPreview mode
Version 1.0.277
Merge pull request #4879 from yurydelendik/master

Version 1.0.277
Merge pull request #4851 from orionhealth/4792-addprefhashparam

Added more preferences for the available hash parameters.
Merge pull request #4866 from yurydelendik/issue4673

Removes mozResponseArrayBuffer
Merge pull request #4876 from Snuffleupagus/issue-4875

Prevent adding undefined array entries to CMap.map in mapRangeToArray (issue 4875)
Merge pull request #4835 from Snuffleupagus/issue-4800

Prevent font error when no preferred cmap table is found (workaround for issue 4800)
Fixed IE links bug by adding a base64 transparent gif for anchor tags for
IE only.