Tidy long referendum title logic
Hide social media section if none availabe.

As requested in status meeting, do not display message saying none available.
Close input streams in asynchronous tasks
Add async task to download images.

For use in fetching candidate photos.
Also adds to error handling in other async tasks.
Set candidate photo in list as well as details
Set VoterInfo to null before querying.

This is to fix #31.
Style spinner.

Using [Android Holo Colors Generator](http://android-holo-colors.com/).
Remove testing alternate elections and candidate images
Style candidate details
Remove unused resources
Remove outdated TODO
Remove query result object logging
Merge pull request #33 from flibbertigibbet/feature/style-candidates

Feature/style candidates