initial pass at endpoints
not used
initial pass at using the endpoints API to sync friends getlantern/lantern#919
Added check for whether user is invited and fleshed out data transfer a bit
Staged move to new friends infrastructure
switch to non-snapshot version
Fixed persistence class
comments
not used
Updating to latest lantern-common and removing dead code
version bump
Non-snapshot version
Merge pull request #41 from getlantern/endpoints

Change to make friend handling restful getlantern/lantern#16
Fixed name and version
Merge master.
bumped to new common
Merge branch 'merging'

Conflicts:
	pom.xml
	src/main/java/org/lantern/data/ServerFriend.java
	src/test/java/org/lantern/DatastoreTest.java
Prevent invite e-mails with same inviter and invitee from being re-sent.

Also, remove obsolete number-of-invites logic.
bumped to latest common with associated friend changes
bumped app engine version