Enable openh264 plugin for "Call recording" test
Enable openh264 plugins for the "Call recording tester"
Update desciption comment of linphone_call_params_set_record_file() function.
Dispatch Windows messages regularly in the Python wrapper.
Execute the commands and the linphone_core_iterate() in the same thread in the Python example.
Update description comment of the LinphoneCallParams.setRecordFile() method.
Allow any callable as linphone core callbacks and log handler in the Python wrapper.
Set linphone core callbacks as instance methods in the Python example.
linphone_core_iterate() Python wrapper no longer needs to be handwritten.
Merge remote-tracking branch 'source/master'