Sometimes querying the APN DB throws this exception as well.
Fix for NPE on null mms bytes.
Fix for concurrentmodificationexception on race condition.
Catch mysterious SMS too large exception.
Bumped version to 0.9.4
Tweak MMS retrieval and submission.

1) Only attempt direct connect outside of MMS radio mode on CDMA.

2) Don't switch back to normal radio state if pending messages remain.
Add synchronized access to cache
Guard NPE
We don't support unknown content lengths yet.
Updated language translations
Bumped version to 0.9.5