Add all the TripleO projects.

I'd like to be able to eyeball TripleO reviews with the reviewday
heuristics (and possibly tweak those in future...).

Change-Id: If4faf9ebe0b1bc538a17b951133a9d7f3f8e189b
Ignore editor backup files.

Same reason as ignoring .pyc - we never want to add them.

Change-Id: I2db62db28102914a009fbedde4029b312d87b034
Be explicit to vim that bin/reviewday is python.

Since it has no .py, it's not auto detected.

Change-Id: I6b1a1addcd19a2f487aa40492d49e6ea91fc6871