more comprehensive and specific gitignore

mostly ignoring autoconf and automake stuff
Merge pull request #104 from ploxiln/more_gitignore

more comprehensive and specific gitignore
Update videomcutest.js

Accommodates the lack of audio device.
Merge pull request #105 from gatecrasher777/master

Update videomcutest.js
More room for fmtp in streaming plugin
Trying to correct bug where when a room is destroyed and participants try to leave the room at almost the exact same time, there are seg faults