Reset trunk to 3.29.70

git-svn-id: http://v8.googlecode.com/svn/trunk@24106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.29.70.1 (merged r24071)

Fix type in idle time undershot histogram name

R=machenbach@chromium.org
BUG=

Review URL: https://codereview.chromium.org/590063002

git-svn-id: http://v8.googlecode.com/svn/trunk@24107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.29.82 (based on bleeding_edge revision r24129)

Fix escaped index JSON parsing (Chromium issue 416449).

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@24136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.29.83 (based on bleeding_edge revision r24139)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@24142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.29.84 (based on bleeding_edge revision r24096)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@24149 ce2b1a6d-e550-0410-aec6-3dcde31c8c00