Update package.json

Not that the package.json was bad before, just tidying up.
Merge pull request #17 from pmgarman/update-package.json

Update package.json
use tilde operators - https://www.npmjs.org/doc/misc/semver.html
.csss typo
typo
change breakpoint name from 'mobile' to 'phone'
update media queries in breakpoint mixin to use min-width to design for mobile first
run csscomb before we min
Remove _s, prep for submodule
Add WDS fork of _S as submodule
Proposed revamp of wd_s mu-plugins/plugins;