Bug 925916 - Handlify various things in XPConnect, r=bholley

--HG--
extra : rebase_source : d6b2697f043d56e6c96e5addc7e6192d067a068c
Bug 925916 - Add some handles to dom/bindings, r=bz

--HG--
extra : rebase_source : 2443d2b988dea432c4961e8b042b0288e1dc7016
Bug 925916 - Handlify WrapNative, r=smaug
Bug 925916 - Random minor code cleanups, r=smaug
Bug 925916 - Handlify WrapNative in content/, r=smaug
Bug 925916 - Handlify a few things in bluetooth, r=smaug
Bug 927031 - Use MPostWriteBarrier to postbarrier SetElementIC r=jandem
Bug 923183 - Make StackFrame mark callee value and this where present r=jandem