Fast-forward version number on bleeding_edge to 3.30.0

BUG=none
LOG=n
R=danno@chromium.org

Review URL: https://codereview.chromium.org/612823003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24302 ce2b1a6d-e550-0410-aec6-3dcde31c8c00