Updated examples
Merge branch 'master' of https://github.com/PistonDevelopers/freetype-rs
Merge branch 'master' of https://github.com/PistonDevelopers/freetype-rs

Conflicts:
	examples/single_glyph/single_glyph.rs
	examples/single_glyph_ffi/single_glyph_ffi.rs
Merge pull request #39 from Coeuvre/master

Updated examples