Issue #103 - saw ConcurrentModificationException while running unit tests.  Fix per SO post:

http://stackoverflow.com/questions/13151166/collections-synchronizedmapnew-linkedhashmap-is-not-making-map-threadsafe

https://github.com/couchbase/couchbase-lite-android/issues/103
Issue #103 - port fix from iOS ticket.

https://github.com/couchbase/couchbase-lite-ios/issues/274

https://github.com/couchbase/couchbase-lite-android/issues/103