Drop unused code from the old internal filters era.
unrar.vcxproj: remove obsolete _ProjectFileVersion property.
Run astyle.
Readme.md: Add Coverity badge.
Remove VS2012 support.

From the next LAV Filters update, VS2013 is required to build.

Closes PR #122.
SubresyncBar: Fix wrong timestamps for frame based auto-loaded subtitles

Subtitles are loaded before we get valid frame rate from the renderer so
we need to reload subtitles when we get that info.
Cosmetics: Remove unneeded cast
Add Transifex client to .gitignore
Add balance and volume representation to the resources
Use CTime methods to format time.

Fixes CID 1139542
StateItem: Initialize members