Added Date::ResetCache() to the API so that the cached values in the Date object can be reset to allow live DST / timezone changes.

Extended existing support for printing (while debugging) the contents of objects.  Added support for printing objects from release builds.

Fixed V8 issues 989, 1006, and 1007.


git-svn-id: http://v8.googlecode.com/svn/trunk@6096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00