disable a couple more /analyze warnings for VS2012
Use the variable in the sizeof argument instead of the struct name.
Compress png files with PNGOut /r.
Update lcms2 to 45034fb
Updated Greek translation.

Refs: #1680.
Move old changelog entries to Changelog_old.txt.
Add VS2012 update 3 version number.
Get rid of the VS2012 update 2 workaround.