Bug 1115400 - Enable toolbar module tests for travis
bug 1084489 - don't warn on JSM modules
Merge pull request #1771 from erikvold/1115400

Bug 1115400 - Enable toolbar module tests for travis r=@zombie
Bug 896085 - Enhance the README
Merge pull request #1773 from zombie/1084489-jsm-warn

bug 1084489 - don't warn on JSM modules, r=@erikvold
Bug 896085 - adding good first bugs list link, and editing the mdn link
Merge pull request #1775 from erikvold/896085

Bug 896085 - Enhance the README r=@zombie
Bug 1111276 - Replace gBrowser.selectedTab.linkedBrowser with gBrowser.selectedBrowser. r=dao