Don't crash on all-query URLs (fixes newrelic/node-newrelic#26).
Removed unused variables.
connection: clear response listeners on failure.
Don't start when we know there's no license key.
Sweet beta language
Merge pull request #3 from lightbody/master

Support language reflects current beta status.
Tweaked documentation for usability.
Release notes for new version.
Released 0.9.21.