Bind Ctrl-Q as a global hotkey to exit.  Bind Ctrl-W as a hotkey to close
dialogs.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274091 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Add a new thread state "spinning" to schedgraph and add tracepoints at the
start and stop of spinning waits in lock primitives.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274092 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f