Cleanup of conference code including logging, flags and some workflow.

The main purpose was to simply the logic so that the code is more
explicit about what it is doing. There was also a bug in the hold and
resume flow that was fixed.

Bug: 19294176
Change-Id: I558d6da919b9d763f1fd2413e8f9a3dfa5d0e4be
1 file changed
tree: 7ba1b2b00afd11070a47c238675ecc505332c2a4
  3. README.txt
  4. src/