Bug 821065 - Add wildcard event.
Bug 920780 - Sidebars attach event emits when using show() even if the sidebar is already shown
Bug 922794 - Test that errors in promise resolution handlers are propagated
Bug 920780 working around the race condition and making the test more reliable.
Bug 923353 - Add a 'ready' event to sidebars
Bug 925436 Clarify tab.attach in docs that worker is on every document in that tab
Merge pull request #901 from Gozala/bug/listen-to-all@821065

Bug 821065 - Add wildcard event. r=@ZER0
Revert "Bug 821065 - Add wildcard event."

This reverts commit 434f0e68712f80a6de61768793cd15f910c26a81.
Bug 923348 - Changing a sidebar.url from A to B then back to A does not work
Merge pull request #1258 from erikvold/923348

Bug 923348 - Changing a sidebar.url from A to B then back to A does not work r=@zer0
Bug 927524 Closing a window with a sidebar open does not fire a detach or hide event
Merge pull request #1267 from erikvold/927524

Bug 927524 Closing a window with a sidebar open does not fire a detach or hide event r=@zer0
Bug 920812 - Sidebars should have a more explicit error message for remote uris
Merge pull request #1249 from erikvold/920812

Bug 920812 - Sidebars should have a more explicit error message for remote uris r=@zer0
Bug 921314 buffer parity with node.js API
Merge pull request #1252 from jsantell/fix-buffer

Bug 921314 buffer parity with node.js API, r=@gozala
Bug 919909 Buffer.isEncoding now uses TextDecoder instead of encoding hash
Merge pull request #1271 from jsantell/919909-buffer-isencoding

Bug 919909 Buffer.isEncoding now uses TextDecoder instead of hash, r=@jsantell
Bug 910599 allow emitting system events with primitives or no arguments as data
Merge pull request #1257 from erikvold/922794

Bug 922794 - Test that errors in promise resolution handlers are propagated r=@jsantell