General angular loading improvements.

- Dash app now uses a global viewPath so we hardcode views a little less
- Top dont-call-it-a-nav-bar is now ng-included
Left a debug statement in
Mostly whitepsace, removed the class="container" attr from the top level
dash ng-view.

I had to do this because the new sideNav thing is supposed to be all the
way to the left and since we're not using angular, I can't do some {%
block %} hackery. The top level element shouldn't presume anything
anyway.
Forgot this one.
Side nav. Looks pretty bad right now. Isn't functional at all.