resolved cherry-pick conflicts

updated names of files, consolidated new css, added accessible submit to contact us page

added new css and js files to go with create plan page. css should be used for all new ui work going forward DMPRoadmap/roadmap#150

removed substance-forms modifications from the dev branch. will place in a separate branch so that we can continue development

fixed merge conflict in seeds.rb file. installed substance-rails gem and updated code to swap in the substance-forms text-area for tinymce on the answer section of the edit plans page

Switched answer text area to substance editor.

Added substance-rails gem and then included the appropriate js and css libraries into the asset pipeline

moved assets from app/assets to lib/assets. The files in lib/assets will be used by Rails unless override by an equivalent file in app/assets. Added logic to applicationController so that it will look first for a template in app/views/[:branded folder name] before using the default in app/views