Squashed commit of the following:

commit 1c3e16e08ca3e65748fd990158d907f10d895340
Author: Larry Hosken <lhosken@twitter.com>
Date:   Tue Mar 4 12:52:58 2014 -0800

    doc: tag some code-includes as Python

commit a40179e2d52dd470fdc9ad6c0ebfa71b7147ffc3
Merge: 98307ef 2d8550e
Author: Larry Hosken <lhosken@twitter.com>
Date:   Tue Mar 4 12:51:02 2014 -0800

    Merge branch 'master' into lahosken_thriftexnopp

commit 98307ef7d5fef74706344b4da49a76651b3689aa
Author: Larry Hosken <lhosken@twitter.com>
Date:   Mon Mar 3 14:20:58 2014 -0800

    docs: don't include pingpong_thrift, it's 404. instead, precipitation

commit 8f91fafa2977da9589c0f89cddd51e4165caf728
Author: Larry Hosken <lhosken@twitter.com>
Date:   Mon Mar 3 11:30:46 2014 -0800

    thrift docs: use pants-y example, not commons-y example