Port gerrit to sympy

[aterrel]

To help manage sympy patches, port the gerritt tool. Some useful links:
- http://android.git.kernel.org/?p=tools/gerrit.git;a=summary \* http://groups.google.com/group/repo-discuss This work amounts to 
  1) setting up a google apps engine instance
  2) modifying the django look and feel (less android more sympy logos)
  3) getting an easy to run script to upload patches (currently uses repo, which is a bit heavy weight 
  for just one project)

Original issue for #4296: http://code.google.com/p/sympy/issues/detail?id=1197

Original author: https://code.google.com/u/106486100774697058597/

Original owner: https://code.google.com/u/106486100774697058597/

[aterrel]

This might be better if we wait until the gerrit-2 is released.  See http://groups.google.com/group/repo- discuss/browse_thread/thread/868951ef60e87599

Right now I just seem to be hitting lots of undefined code trying to get things setup.

Original comment: http://code.google.com/p/sympy/issues/detail?id=1197#c1

Original author: https://code.google.com/u/106486100774697058597/

[certik]

Yes, if it's a lot of work, let's just wait for gerrit2 and just use git and git
send-email in the meantime.

Original comment: http://code.google.com/p/sympy/issues/detail?id=1197#c2

Original author: https://code.google.com/u/104039945248245758823/

[vperic]

Not really relevant, we use Github now. See also issue #1256 (also just closed).

**Status:** WontFix  

Original comment: http://code.google.com/p/sympy/issues/detail?id=1197#c3
Original author: https://code.google.com/u/108713607268198052411/