Photos download, packaged app improvements
Bump version
Fixed horizontal scrollbar

Fixed #265
Fixed settings version
Improved makefile
Fixed manifest version
DC 2 hotfix
Bump version
Bugfixes
Move cache manifest to *.appcache

https://github.com/zhukov/webogram/issues/278#issuecomment-43072649
Improved grouping messages

Now displaying unread icon for grouped messages
Increase group timeout to 5 minutes:
https://github.com/zhukov/webogram/issues/177#issuecomment-42838841
Improved gulp task for cache manifest
Bugfixes