Fixes Missing font bug

Closes #77

- Adds font to build phases
- Cleans up caption code
- Adds correct font and colors to caption code
- Changes camera background to clear
- Moves startListening to delegate call in welcome controller
Duplicate Object Bug Fix

Closes #75
Parent #78

Queries at the FoursquareObject level were cached. As a result, checks for deduplication (upsert calls) where always inserting. This patch fixes that issue.
Merge pull request #79 from azoff/75-duplicate-objects

Duplicate Object Bug Fix