Remove htmlmin

All links didn't work ok after minifying. Getting rid of this to
simplify build.
Merge pull request #20 from XhmikosR/master

Minor improvements (2)
Add missing files to `copy:dist`

Now it copies data from `app/` too in case that exists. Handy during
development.
Watch CSS style changed at LiveReload
Switch to a div.

`article` doesn't make a lot of sense here.
Improve loader.

Use Font Awesome's `fa-spinner` with `fa-spin` class to animate the spinner.
.jshintrc: sort by name.