add gulp as a peerDep
Upgrade gulp-connect, gulp-jshint

JSHint seems to have changed reporters, gulp-connect added support for
middlewares.
Add gulp-useref to html task. Add usemin blocks. Add bundle task. Update styles, scripts tasks.
Merge pull request #16 from jonkemp/useref

Add gulp-useref to html task. Add usemin blocks. Add bundle task. Update...
bumping package
Change package keyword from grunt to gulp