[SJS-199]:
-Implement _setSDPVideoResolution
-Fix _findSDPLines loop bug
-Fix condition to enable stereo
-Improve doc
[SJS-230][SJS-232]: Rename SDP methods
[SJS-231]: Test for SDP modifications
[SJS-231]: Update dependencies
Merge pull request #40 from Temasys/sdp

SDP modifications bug fixes
[SJS-224]: Create callback for getUserMedia
[SJS-224]: Add test for getUserMedia callback