Merge pull request #209 from zolkis/gh-pages

Added a refactored version with TelephonyService support and interface s...
Merge pull request #210 from zolkis/gh-pages

reworked method descriptions, updated conference call related interfaces...
Merge pull request #211 from zolkis/gh-pages

added constructors to events for testability
added examples, small corrections
Added index3.html, a new proposal fixing issues from Qualcomm feedback: reworked conference handling, using Promises, reworked examples, added use cases, addressing permissions, using constructor for TelephonyCall, push telephony service handling as appendix, reworked steps in many algorithms, etc