Bug 970380 - fix width and height of Australis SDK buttons in panel, r=jaws

--HG--
extra : rebase_source : 62e05782ea17339bc2fe316f7a94b1f4aa41c26e
Bug 964267 - fix star button pressed state on Australis, r=mikedeboer
Bug 964684 - Fix for intermittent TEST-UNEXPECTED-FAIL | browser_webconsole_bug_642108_pruneTest.js | Test timed out; r=me
Bug 969429 - DevTools Themes: in the light theme, the sidebar tab separators are too dark;r=pbrosset
Merge m-c to fx-team.
Bug 736574 - PageInfo: Fix an if-condition causing a failure to sort the media by count. r=Dao
Bug 961780 - Use "b2g" package name instead of "browser". r=fabrice
Bug 962511 - Expose mozilla::InitEventTracing to JS via appShellService. r=ehsan
Bug 962511 - Implement an eventlooplag actor. r=past
Bug 969668 - Don't show rule count of original source until it's been linked to a file. r=pbrosset
Bug 969448 - Netmonitor selected filter reset to "All" upon every new page request, r=rcampbell
Bug 899727 - Increase maximum size of response panel in network panel, r=rcampbell
Bug 970815 - Clicking on a slice in the performance view doesn't sort the requests by the respective type only, r=rcampbell
Merge fx-team to m-c.