Autoprefixer

Use the grunt postcss task to run autoprefixer on our generated CSS.
Create a grunt task to incorporate all the css generation tasks into
one task (so this will generate the CSS from LESS, then run the
autoprefixer to prefix the CSS).

Also include this generate-css task within the test tasks, just to be
sure (more for protractor).  Formatting of the package.json is the
reason for the huge diff.
Ignore for nodemon

Add a list of locations to ignore for nodemon, which should match the
paths setup to ignore for grunt watch.  Even with grunt watch
monitoring, nodemon was also monitoring and needed to be limited in its
scope.
Default "build" NODE_ENV in grunt build task

Default the NODE_ENV to “build” within the grunt build task, and
rearrange the tasks where needed.  Remove the specified NODE_ENV from
the npm task in the package.json file.