Do not close renderer twice.

The renderer was being closed a second time in the before exit
logic which would cause the TAP end message to be printed twice.

This only happens when using tape in node of course.
fix close bug
test.only
undo whitespace
whitespace back
Merge branch 'test.only' of git://github.com/Raynos/tape into Raynos-test.only
bad comma
0.2.1
fix merge conflicts
0.2.2
add small test runner

allows tape users to do "tape test/*.js" so they can have something that
will run their tests under "npm test".
0.3.0
Merge branch 'master' of git://github.com/Raynos/tape into Raynos-master
0.3.1
failing exit test for 2nd test() plans
use a setInterval to keep the event loop alive
fix the second exit test asserts
clean up the global harness exit interval
0.3.2
guard process.exit() with a canExit for browsers