10gen v8 changelog
------------------

12/19/12:
    - SERVER-7990: Use real_climit() in StackLimitCheck::HasOverflowed (backport of chromium cr 11362007)

12/18/12:
    - SERVER-7989: Fixed issue with ContextSwitcher::PreemptionReceived always checking the default isolate

10/25/12:
    - SERVER-2407:
        - Retrieved base version of v8: 3.12.19.11 via git
        - Removed files unused by mongodb
        - SCons integration
