Index objects if Prev xref was not found
[PDFHistory] Fix "Warning: Unhandled rejection: [Exception... "The operation is insecure."" in Firefox 25
Merge pull request #3961 from Snuffleupagus/issue-3959

[PDFHistory] Fix "Warning: Unhandled rejection: [Exception... "The operation is insecure."" in Firefox 25
Fix issues with /FitR destinations
Takes chunk id == 0 into account during grouping
Merge pull request #3955 from Snuffleupagus/issue-3953

Fix issues with /FitR destinations
Fixes find position in HiDPI displays
Merge pull request #3964 from yurydelendik/issue-3962

Fixes chunks grouping
Merge pull request #3968 from yurydelendik/hidpi-2

Fixes find position in HiDPI displays
Fix page rotation for unloaded pages.
Merge pull request #3954 from yurydelendik/invalid-start

Index objects if Prev xref was not found
Merge pull request #3970 from brendandahl/rotation

Fix page rotation for unloaded pages.
Fix rotation regression from #3970.
Merge pull request #3971 from brendandahl/rotation2

Fix rotation regression from #3970.
Fix printing regression from #3848.
Append entire DOM fragment at once.
Merge pull request #3976 from brendandahl/dom-frag

Append entire DOM fragment at once.
Merge pull request #3972 from brendandahl/print-reg

Fix printing regression from #3848.
Merge remote-tracking branch 'upstream/master'