fix compilation issue on MS2
Add list of transient messages for messages that are still transitioning to either "delivered" or "error" state.
This allows the get_history() call to return pointers that are valid when the chat_state_changed callback is called.
Fix leak in JNI
Enable detection of SQLite3 without PKG_CONFIG
add more test for invite  without sdp
fix crash with ICE in case of no incoming SDP
Update oRTP submodule for AVPF fixes.
adapt to lastest belle-sip and fix bad naming of variables.
fix ICE call without SDP test
Fix configure.ac to allow message_storage=auto
Update ms2
Merge branch 'master' into dev_filetransfer
File transfer implemented following RCS5.1 recommendation
- memory leaks to be fixed
File transfer: fix memory leak