i#1097: Alias -v to -verbose and add -version for drrun

The previous Linux shell script frontend accepted -v for verbose, and we'd
prefer -v for verbose on Windows as well.

Also don't let the injector kill itself on dr_inject_process_exit().

Review URL: https://codereview.appspot.com/7415043

git-svn-id: https://dynamorio.googlecode.com/svn/trunk@1957 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6