End of development notice...
Updated version to 3.11.1
Updated year in copyright line to 2017
Tweaks regarding libsrtp finding and using Now including srtp/srtp.h instead of just srtp.h
Import of version 3.9.2
Import of version 3.9.1
Import of version 3.9.0
Import of version 3.8.2
Import of version 3.8.1
Import of version 3.8.0