Build Python 2 with UCS4 to match what is typically used on Linux systems.
Give up on trying to provide 2.6. Doesn't want to compile with zlib support which causes later problems.
Purge system Python 3 packages.
Python 3.4 ships with a version of pip.
Add non versioned symlinks for Python 3.
Add documentation about Python 3.3 and 3.4 images.