Use python2 rather than python
python may refer to either python2 or python3 so rather by explicit by
using python2.
See PEP 394 - http://www.python.org/dev/peps/pep-0394/ for more
details.
Replace big chain of if/thens in epoll.c with a table lookup
This should save a bunch of branches by doing instead a lookup in a
nice static table.
To ensure correctness, the table is generated from a Python script,
included with this commit.
