Add 2.1.3, 2.2.3, 2.3.7

Just enough to run PyCrypto's test suite.
Merge pull request #199 from dlitz/pycrypto

Add support for 2.1.3, 2.2.3, 2.3.7
Add support for options to ez_setup.py/get-pip.py (#200)
Merge branch 'ez_setup_opts'
v20140628
Remove `exit 0` from initialization code of fish
Add CPython 2.7.8 (refs #201)