Added "dependencies" target to top-level Makefile.

Added ability to turn profiler on/off in d8.

Added "soname_version" parameter to common.gypi, v8.gyp, and Makefile.

Fixed several crash bugs.


git-svn-id: http://v8.googlecode.com/svn/trunk@9201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00