Rename 'Settings' to 'ViewHistory'
Fix thumbnail rotation regression
Fix singlefile build target
add support for Conkeror
Remove superfluos <!DOCTYPE html> from page action

Fixes #4064
Merge pull request #4065 from Rob--W/crx-pageaction-html-typo

Remove superfluous <!DOCTYPE html> from page action
Added missing <html> tag to page action
Merge pull request #4059 from glasserc/add-conkeror

add support for Conkeror
Merge pull request #4066 from Rob--W/crx-pageaction-html-typo

Added missing <html> tag to page action
Merge pull request #4053 from Snuffleupagus/rename-Settings

Rename 'Settings' to 'ViewHistory'
Merge pull request #4055 from Snuffleupagus/fix-thumbnail-rotation-regression

Fix thumbnail rotation regression
Merge pull request #4058 from gjuggler/singlefile-fix

Fix singlefile build target
Update l10n for de: hand_tool_*, password_*, fixes

Comments:
Line 56-58: "Gegen den Uhrzeigersinn" is shorter and more common than "Entgegen dem Uhrzeigersinn" (http://de.wikipedia.org/wiki/Drehrichtung)

Line 60-63: "Hand-Werkzeug" is also used in Acrobat

Line 124,133,..: "PDF" is not a noun. Acrobat, Wikipedia use "PDF-Datei" (="PDF file") instead of "PDF". 
The English translation sounds just as bad: "An error occurred while loading the PDF.", "The PDF is not fully loaded for printing."

Questions:
133: "request_password" is not present in en-US. Is it necessary in DE?

Why the difference in Line 103:
en-US: error_version_info=PDF.js v{{version}} (build: {{build}})
de-DE: error_build=PDF.JS Build: {{build}}
Recompressed PNG assets
Revert "Recompressed PNG assets"

This reverts commit 9fe97c6bf2ab71c7bd86f91b000542131c76714a.
Recompressed PNG assets
recompressed PNG assets No2
Revert "recompressed PNG assets No2"

This reverts commit 47b5a6534618eda87a98df952953c6fd3010118c.