Port iOS fix over, which allows one assertion to be uncommented.  Still waiting on further fixes (or clarification) on the iOS ticket.

https://github.com/couchbase/couchbase-lite-android-core/pull/27
Fix for issue #10 CBLURLConnection.java/getOutputStream() has potentially dangerous behavior

https://github.com/couchbase/couchbase-lite-android-core/issues/10
Point repository in build.gradle at mavenCentral() issue #32

https://github.com/couchbase/couchbase-lite-android-core/issues/32
Upgrade to Android Studio 0.4.3.  Use SDK version 19.