adding oauth branch and some file updates along with branch
Modified user.rb to add new parameters for google_oauth
Modified login_controller.rb to add new index method for google_oauth
added session controller
modified route.rb for google_oauth
Merge github.com:CDLUC3/dash-ingest into oauth
Modified schema.rb for google_outh login
Modified user.eb
Added Sessions controller for google_oauth login
Merge remote-tracking branch 'origin' into oauth
removed few duplicate lines in routes.rb
modified schema.rb
modified user.rb
modified deploy.rb to set master as a deafult branch
modified deploy.rb to set default master
modified capistrano script to set multiple server for deployment
changes for keywords and citation
modified omniauth.rb for shibboleth authentication
modified omniauth.rb
modifled initializers file  for shibboleth