Feature/build deploy ui

Feature/build deploy ui

 - Add ability to start a universal build
 - Add angular sdk build for build-deploy
 - add api calls to build git and universal
 - add argument to build api
 - add arrow next indicator
 - add deploy payload to api call
 - Add deployments backend
 - Add error handling to forms
 - add file upload handler for universal deploy
 - Add help
 - add input type number to process selector
 - add promise to call
 - add scrollbar to content area
 - add support for deploys
 - Build and deploy wireframe
 - Build backend
 - change title on source toggler
 - create build deploy service
 - disable form when existing build source
 - implement visual design
 - Merge changes lb-build.js
 - Minor build-deploy fixes
 - rebuild lb-build.js
 - refactor into directives
 - Remove build.refresh()
 - Remove duplicate css from merge
 - Rename the github repo to strong-arc
 - Update README
 - Use isolate scope for help directive


@seanbrookes please review
@ritch please review
We don't use this or cookie-parser. This is a workaround for: https://github.com/strongloop/loopback/issues/833