Support for incoming UPDATEs within dialog.
For tests, the possibility to send an UPDATE with linphone_core_update_call() has been added thanks to a $
Added possibility to configure Supported SIP header.
fix incorrectly named functions and compilation errors due to merge
fix leak of messages in tester
fix crash in test and memory leak of LinphoneCallParams
File transfer: bellesip manages the multipart message component's header
Merge branch 'master' of git://git.linphone.org/linphone