Version 3.26.29 (based on bleeding_edge revision r21101)

Added a Isolate* parameter to Serializer::enabled() (Chromium issue 359977).

ES6: Add support for Array.prototype.fill() (issue 3273).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@21106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk