Import the extension, index.html and app.js files

As discussed here github.com/GoogleChrome/webrtc/pull/85 with @juberti.

These are only the essential files from my example app.

In order to run the example, one needs to serve it over https.  For
convenience I included a small ruby script in the [original
repo](https://github.com/wpp/ScreenStream) but I'm not sure how you feel
about that.

What is also missing is the README any thoughts on that? Should the
documentation only live in the `.js` files? (I would need to add some
then.)
Updates manifest urls for github pages (@jiayliu feedback)
adding maxplaybackrate as a codec parameter
making names shorter
Merge pull request #103 from minyuel/master

adding maxplaybackrate as a codec parameter
Merge pull request #86 from wpp/desktopCaptureAPI

Add desktopCaptureAPI example (for screen streaming with an extension)
Merge pull request #105 from GoogleChrome/testrtc

For reals - initial version of TestRTC.
Fix quote style; stop audio track when finished.
Merge pull request #109 from GoogleChrome/testrtc

Add UDP/TCP connectivity tests.
Merge branch 'master' into testrtc3
Merge pull request #112 from GoogleChrome/testrtc3

Fix quote style; stop audio track when finished.
Use a monospace font in the text area
semicolon FTW
Merge pull request #115 from GoogleChrome/testrtc3

Use a monospace font in the text area
Added WebRTCCall to help establishing a calling between two local peer connections.

Implemented a DataChannel bandwidth test that sends a block of packets of 1024 bytes
everytime the bufferedAmount is 0 and prints the bitrate sent over one second.
Added CamResolutionsTest, checks in sequence a bunch of resolutions.
Support for filing bugs.

When being forwarded to the issue tracker, the contents of the issue
to be filed is not lost if the user has to authenticate first.
Details on fields that can be pre-populated:
https://code.google.com/p/support/wiki/IssueTracker#Issue_entry
It seems hard to auto-attach a file.

A future improvement can be to intercept all console logging and
store a copy of each line in a texttarea element. Then it could
be included in the description of the bug to be filed.

TESTED=Ran the browser detection part with Chrome, Firefox, IE and Safari on desktop to ensure it was working properly.
juberti@s comments
Style fix
More style fixes + rename to bugReport() and update CSS.