cruft
Bring in mincss
Stylus updates

* Ignore files that start with _
* Build all other files to CSS (not just app.css)
* Import nib by default
* Disable compression by default (use mincss instead)
Separate clean dirs & upgrade clean to rc6
Upgrade uglify & configure
Nix trailing comma
Nix scripts/vendor, just use js/ for untouched vendor scripts
Defaults: Nix alert and add box-sizing
Add strip and alphabetize
Don't wrap vendor scripts
Copy vendor scripts into tmp
Add strip
Update paths in index.html

Strip some extra cruft
Copy vendor scripts to tmp
Update tasks, add prep and minify
Update README