Version 3.29.87 (based on bleeding_edge revision r24156)

Preserve message when rethrowing exception (issue 3583).

Fix escaped index JSON parsing (Chromium issue 416449).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@24158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00