revert distribute version (0.6.36 -> 0.6.32) due to the installation
problem with Jython 2.5.[01] (#15)
revert pip version (1.3.1 -> 1.2.1) to avoid AttributeError on Jython. (#15)

    AttributeError: 'module' object has no attribute 'O_NOFOLLOW'
Merge branch 'issue15'