added verification of RTCP reported ICE connections to verify bundle later
use global track counters instead of re-evaluating several times
fix all offerRequiresReceive test cases
check for bundle support in SDP answer
fixed typo in comment
use max() instead of :
Merge pull request #4 from nils-ohlmeier/multistream

Added tests steps to verify amount of ICE connections with or without SDP bundle support