Added EMPTY_FS flag to pretend if filesystem is empty
If it is true, ignores content in the filesystem
If it is false, uses content in the filesystem
Merge remote-tracking branch 'upstream/master'
Added cff serializer
Generated glyph_data and glyph_table files using CFF table in the font
Merge pull request #43 from ahmet-celik/master

Added EMPTY_FS flag to pretend if filesystem is empty