initial, untested rework of models around RawResults for discussion. #49

* Add Party, Person, RawResult models
* Rename boatload of fields across models and add help_text
* Update __unicode__ strings to reflect field updates (untested)
* Add TODOs and QUESTIONs for discussion
Merge branch 'rawresult' of github.com:openelections/core into rawresult