Bug 835793 - Fix errors in the list of modules supported by Fennec
- Updated `widget` as unsupported module
- Added `page-worker` and `system` as supported module
- Added Flavored MD syntax for deleted content (~~)
- Updated `sdk-docs.css`
- Removed comments from `mobile.md` to make it more readable
- Removed the changes on markdown parser
clarified the value of 'node' in 'context' and 'click' events
we should have only one space, not two, after a period
Bug 839271: Use the inner window ID to cache workers so we get a new one if the outer window doesn't change.
Merge pull request #773 from wbamberg/824638

Fix for bug 824638 - Add-on keeps getting "TypeError: node.href is undefined" for an <a> containing an <img>
Added missed modules (plus index-db)
Merge remote-tracking branch 'upstream/master' into mobile-doc-fixes/835793
Fixed typo on indexed-db
Merge pull request #747 from ZER0/mobile-doc-fixes/835793

Bug 835793 - Fix errors in the list of modules supported by Fennec
Bug 839271: Address review comments.
Merge pull request #774 from Mossop/bug839271

Bug 839271: Use the inner window ID to cache workers so we get a new one if the outer window doesn't change. r=erikvold