Added additional JavaScript linting with `jscs`.
Fixed minor `jscs` lint errors.
Added `csslint` and `less` version output.

Note that this currently doesn't work at all, but hopefully a similar
feature will be release for `commander`.
Minor change.
Test the package on node.js v0.11.0 (development version).
Allow `fast_finish` with Travis CI.

See http://blog.travis-ci.com/2013-11-27-fast-finishing-builds/