Fix rendered characters have been chipped for some TrueType fonts

ImageFont ignores descender value of TrueType fonts (uses ascender only),
then some fonts which use descender is chipped on rendering.
Starting to integrate README
Rst, not gfm.
::block formatting
Merge branch 'master' of https://github.com/wiredfool/Pillow into readme
Fix tests which are hardcoded for little-endian CPUs
Make quantization code more portable
Merge pull request #178 from manisandro/endian

Fix tests which are hardcoded for little-endian CPUs
create a palette before converting transparent L-Mode to RGBA
fixes #154
Merge pull request #179 from manisandro/quantization

Make quantization code more portable
Merge pull request #45 from tk0miya/fix-rendered-chars-have-been-chipped

Fix rendered characters have been chipped for some TrueType fonts
Merge pull request #180 from d-schmidt/master

create a palette before converting transparent L-mode to RGBA
Merge branch 'master' of https://github.com/python-imaging/Pillow
Merged Readme to current master, re-ordered sections
header formating
Merge branch 'readme' of https://github.com/wiredfool/Pillow into readme
OSX instructions
wording, undone
Merge pull request #144 from wiredfool/readme

Readme
makes sure this script is executed with systems python
Also removed some unused imports