Version 3.28.9 (based on bleeding_edge revision r22134)

Make freeze & friends ignore private properties (issue 3419).

Introduce a builddeps make target (issue 3418).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@22135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00