Version 3.29.70 (based on bleeding_edge revision r23986)

Enable ES6 generators (issue 2355).

Fixed int vs. uintptr_t confusion (plus some cleanup on the way) (issue 3556).

Move configuration of ResourceConstraints to Isolate construction.

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@23989 ce2b1a6d-e550-0410-aec6-3dcde31c8c00