Version 3.29.24 (based on bleeding_edge revision r23472)

Tweaks to generate XP-compatible .exes (Chromium issue 407517).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@23475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00