NaCl: install 32-bit plugins to proper place.
Updated FindMagnum.cmake from Magnum repository.
MagnumFontConverter: avoid double padding around the glyphs.

The glyphs were exported with the padding and when they were inserted
back into the cache later, the padding was added again.
FreeTypeFont: test library is needed for some non-GL tests.
Merge branch 'master' into compatibility