Version 3.24.13

Add Isolate parameter to HandleScope::NumberOfHandles (Chromium issue 324225).

Removed v8::AssertNoGCScope.

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@18512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk