Round caret position before writing to .fea file
Round caret position before writing to .fea file

See https://github.com/googlei18n/glyphsLib/issues/85#issuecomment-275545574
Fixes https://github.com/googlei18n/fontmake/issues/232#issuecomment-275543652

googlei18n/glyphsLib,googlefonts/glyphsLib