Update README instructions for clarity based on feedback
Update user configurable strings on home/about pages
Document settings.plist options

Also added BrandNameText key/value pair to settings.plist template
Update localized strings for en/es
Merge branch 'feature/documentation-cleanup' into develop
Fixes #66, remove border from empty table cells
Fixes #67, Remove url string from ContestUrlCell
Update README with better notes/spacing/newlines
Remove HEAD from xctool

The HEAD commit apparently added a breaking change for our combination
of xcode/ios simulator/xctool on the travis stack.
This reverts xctool to use the current stable version (0.1.14) at
time of this commit, which works.
Merge branch 'feature/sprint-4-cleanup' into develop
Fix disappearing map markers
Fix table cell ui bugs
Load election list for userAddress from cache if available
Cache votingInfo queries via CoreData for VotingInfoCacheDays set in settings.plist
Bugfix the CoreData cache mechanisms of the project

  - Update NSManagedObjectContext saves to always save to the
    AppDelegate defaultContext to avoid race conditions and
    accidentally saving on other threads/contexts
  - Remove all other NSManagedObjectContext references in the app
  - Bugfix NSDateFormatter to actually be yyyy-MM-dd
  - If an election is specified, don't default to another one
    if that election can't be found.
  - try/catch for photo data save failure
Use MR_defaultContext for all CoreData operations

A shared context via the AppDelegate should not be used
because it adds unnecessary coupling to the appdelegate
and causes tests to break because the tests do not have
access to a UIApplication instance.

Also, as per the MagicalRecord docs, MR_contextForCurrentThread
should not be used on the main thread because MR_contextForCurrentThread
returns the same context as MR_defaultContext in that instance.
See:
  - https://github.com/magicalpanda/MagicalRecord/issues/566
  - http://stackoverflow.com/questions/17814656/passing-a-managedcontext-with-core-date-magical-record

Remove extraneous AppDelegate imports
Merge branch 'feature/core-data-caching' into develop
Show election until the end of election day
Google Directions API Request and display polyline
Add GoogleAnalytics 3.0.6 as static dependency