Set up Parse

Added Parse to MainActivity, imported Parse jar.
Deleted test code from onCreate.
Added getters and setters to Pin.java and user.java.
Skeletal Implementation of DBQuery

Wrote a first version that isn't ready yet because we need to merge with
our new classes.
Merge remote-tracking branch 'origin/dbquery' into feature/parse-new
Updated DBQuery to use User class
Create ParsePin class for interacting with Parse.
Merge branch 'refs/heads/feature/parse-new-parse-user' into feature/parse-new
Update DBQuery to use ParsePin.
Changed method names and javadoc comments
Updated DBQuery's commenting and pin locking.

Improved comments, implemented a way to see if user has previously
viewed pin.
Wrote DBStore's postPin()

Wrote an initial version of postPin(). Also switched DBQuery to print
error messages to System.err instead of System.out.
Added Facebook login
Wrote DBStore's unlockPin()

Wrote an initial version of unlockPin() and cleaned up some comments.
Stubbed Testing Classes

Wrote empty versions of JUnit test classes for DBQuery and DBStore.
Wrote ideas for testing in the comments.
some pseudo code for redrawing a collection of pins to the map
Drawing pins on map

Added method to draw a set of pins on the google map.  Fixed up
indentation.  stub method for querying db and updating map using
drawPins.
Turned off rotation on map
Test code for drawing pins
Update to current location on app open

The app immediately zooms up to last current known location