VMROSD: Don't rely on timer to repaint OSD
Don't repaint video when angle is not changed.
"Jump to" menu: Use radio bullets instead of check marks.

Radio bullets should be used when only one item out of a few can be selected at time.

Refs: ticket #1620.
Fix "Jump to" menu: clicking on the first file could reload the current one.
"Jump to" menu: Use submenus in file mode when more than one type of destinations is available.

Avoid having a crowded menu and using the old menu style.

Refs: ticket #1620.
"Jump to" menu: Separate titles and chapters in two submenus in DVD mode.

Stacking the two menus as two columns forced using the old menu style and wasn't really clear.

Refs: ticket #1620.
Workaround a crash in the math library for x64 builds.

See http://connect.microsoft.com/VisualStudio/feedback/details/811093

It occured when the CPU supports FMA3 and support for AVX is disabled in the operating system.

This commit fixes #3999.
Language menu: Ensure "Language" always appears in English in menu entry.

If "Language" doesn't appear in the translated string, "(Language)" will be appended automatically.
Language menu: Use submenus to group language names starting with the same character.
Update translations from Transifex:

 - Greek.