Added more installation instructions and troubleshooting tips. Updated the Gemfile to accept therubyracer versions greater than 0.11.4

Updated the installation/troubleshooting instructions and removed the duplicate 'turbolinks' referenced in the Gemfile

DMPonline4 - RAILS 4.0 (#4) ...

Merging the initial DMPOnline4 codebase into Roadmap

DMPonline4, this code was designed and implemented by the Digital
Curation Centre (DCC)
DMPonline runs in Ruby 2.1 and Rails 4.0, there is a mysql database.