Version 3.20.8

Deprecated v8::V8::Pause/ResumeProfiler.

Fixed Chromium issues 247688, 258519 and 260203.

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@15845 ce2b1a6d-e550-0410-aec6-3dcde31c8c00