Set suggested constraints for candidates list.

Fixes issue where last item on list not clickable on 3 1/2 in. screen.
Merge pull request #91 from flibbertigibbet/feature/fix-candidate-list-small-screen

Set suggested constraints for candidates list.
Refactor views so TabBar is root controller

Address selection view pops up over tab bar as
a modal view and displays automatically on load
if no address is selected in the app
Document reasons for multiple home buttons
Fix ContestDetails 3.5in bottom layout constraint
Fix bad storyboard layout constraint after manual merge
Merge branch 'feature/refactor-views' into develop
Update podfile.lock for cocoapods 0.32.1

Update cocoapods with
```
sudo gem install cocoapods
```
Fix #85: Update English home view text

  - Localizable.strings files updated
Fix #90: Sort contests by ballotPlacement

Other related fixes:
  - Remove district.id from contest details
  - Remove ballotPlacement from contest details
  - Sort candidates by orderOnBallot

@jungshadow These were the glaring omissions I saw. Open a new issue if
there are any other fields that should be added/removed and we will
get to them if we can.
Merge branch 'feature/hide-presentational-fields' into develop
Remove voting finder url from details view
Merge branch 'feature/update-home-text' into develop
Merge branch 'feature/remove-location-finder-url' into develop
Update xctool args to clean+build+test

Something in build #184 broke the travis CI with 'simulator
failed to start errors. Likely the Localizable.strings update.
Updating the xctool flags and forcing a clean/build/test cycle
seemed to fix the issue.
Merge pull request #101 from votinginfoproject/feature/fix-travis-build

Update xctool args to clean+build+test
Caps case for contest details candidate name/party
Update contest details properties font color/weight

Switched to primaryTextColor and bold primaryTextColor
from secondaryTextColor. User testing showed that
secondaryTextColor looked too much like a hyperlink.
Update ballot details styling to match contest details
Set userInteraction = NO on ballot details property cells