Merge pull request #75 from minyuel/master

adding Opus FEC support
Fixed some JSHint errors with adapter.js

Fixed some JSHint errors with adapter.js
PermissionDeniedError
PermissionDeniedError
Merge pull request #78 from fippo/permissiondeniederror

PERMISSION_DENIED was renamed "PermissionDeniedError"
PermissionDeniedError
PermissionDeniedError
Merge pull request #80 from fippo/gh-pages

PERMISSION_DENIED was renamed "PermissionDeniedError" (in gh-pages)
Adding 'use-strict' to adapter.js
Merge pull request #77 from GoogleChrome/vikas_jshint_adapter

Fixed some JSHint errors with adapter.js
Update adapter.js to enable strict mode without errors.

Extra tweaks, e.g. adding `window.` where appropriate.
Fixed position of DOCTYPE declaration and closing body tag
Moved script elements to end of doc
Added charset and description meta tags
Removed slashes from meta and link elements -- now normal style for empty (void) HTML elements
Tweaks to code formatting and added closing video tags (video is not an empty element)
Removed redundant muted attribute values and removed redundant space at end of link tag
Minimal functioning version with new UI
Added analytics script link to index.html; added copyright notice to main.css; added line breaks to main.js JSHint options
Merge pull request #83 from GoogleChrome/apprtc-index.html-updates

Apprtc index.html updates