Update `grunt` dependency to v0.4.5.
Updated `grunt-contrib-jshint` dependency to v0.10.0.
Update `grunt-contrib-nodeunit` dependency to v0.4.0.
Update `grunt-jscs-checker` dependency to v0.4.4.
Update `grunt-lintspaces` dependency to v0.5.1.
Update `commander` dependency to v2.2.0.