Change since June 16th

Clarification of the ICE restart issue, as noted in:
https://github.com/openpeer/ortc/issues/93

Clarified onerror usage in sender and receiver objects, as noted in:
https://github.com/openpeer/ortc/issues/95

Clarified SST-MS capability issue noted in:
https://github.com/openpeer/ortc/issues/108

Clarification of send() and receive() usage as noted in:
https://github.com/openpeer/ortc/issues/119

Changed ICE state diagram as noted in:
https://github.com/openpeer/ortc/issues/122

Removed getParameters methods and changed send() method as noted in:
https://github.com/openpeer/ortc/issues/136

Changed definition of framerateScale and resolutionScale as noted in:
https://github.com/openpeer/ortc/issues/137

Substituted "muxId" for the "receiverId" as noted in:
https://github.com/openpeer/ortc/issues/138
https://github.com/openpeer/ortc/issues/140

Clarified the setting of track.kind as described in:
https://github.com/openpeer/ortc/issues/141

Added SSRC conflict event to the RTCRtpSender, as described in:
https://github.com/openpeer/ortc/issues/143

Addressed the "end of candidates" issues noted in:
https://github.com/openpeer/ortc/issues/142
https://github.com/openpeer/ortc/issues/144