proxy.c: fix quality reporting collector address check - sip:collector.linphone.org is a valid collector endpoint as well

Quality reporting: avoid crash in rtcp processing function in case the config proxy is not available

Quality reporting: compute RTT using RTCP SR reports too (in case RTCP XR voip metrics not available) - interspace randomly report sending and clean QoS analyzer data stats on report send

Quality reporting: add decisions' timestamp in adaptive algorithm section and fix on_action_suggested callback setting

fill media information when sending interval report too and added unit test for it (quality_reporting_interval_report)

Quality reporting: add possibility to send interval reports to a given spacing interval during a call

Quality reporting: compute average values for instaneous parameters and added custom extension for qos analyzer to get its input/output on each RTCP packet received

Quality reporting: store struct in LinphoneLog instead of LinphoneCall, and added new/destroy methods

Quality reporting: remove unimplemented fields and split content filling to an one-field-at-a-time process

git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@225 3f6dc0c8-ddfe-455d-9043-3cd528dc4637

git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@1 3f6dc0c8-ddfe-455d-9043-3cd528dc4637