Simplify installation instructions for Debian and Ubuntu

- sfnt2woff is available in the woff-tools package so does not need to be
  installed from source.
- mf2pt1.pl is included in user/skel, so does not need to be installed
  separately.
- Move all apt-get instructions together for clarity
Update instructions to install distribute and pip with apt-get as well
Depend on newer MySQL-python

Version 1.2.4 depends on distribute 0.6.28, which fails to build on Debian.
Merge pull request #16 from mvz/issue-fix-debian-setup

Fix debian setup