Add AfxGetMainFrame() macro
PlayerSeekbar: code refactoring
PlayerSeekbar: smoother mouse seek
PlayerToolbar: be consistent with hand cursor

Previously it changed to arrow on right click
Update lcms2 to 8928bed.
Webserver: Convert the remaining png files to 8-bit.
Update docs/Compilation.txt for VS2012.
Updated Czech translation
Run astyle.
Update LAVFilters to 0.58.2