Remove old JS form validations (#1867) ...

* added new form validation error handling

added tests for orgs controller

converted over remaining controllers to new errors

enhanced message handlers in application controller

finished form validations

* fixed rubocop for all controllers

* Fix broken specs

- Factories needed to be updated to meet new validation requirements
- Spec was broken since error message had changed

* Fix errors and warnings from npm audit

users_joined action re-factored. DMPRoadmap/roadmap# ...

completed_plans action started. DMPRoadmap/roadmap#154

usage#index action and server view completed. Started dynamic UI through JS.

added moment js library and ajaxified joined_users stats.

charts.js integration for users joined. DMPRoadmap/roadmap#154