init hello, world application

 - hello, world application has been initialized
changed pg and rails_12factor versions

 - pg and rails_12factor version have been fixed for Heroku
renamed README.rdoc --> README.md

 - README.rdoc has renamed to README.md for GitHub
changed README

 - remarks on `secrets.yml` has been added
changed README

 - just for refinement
added Static Pages controller

 - just results of `rails generate controller StaticPages home`
added ochimikan core

 - ochimikan core has been copied from the ochimikan repository
added ruby version

 - ruby version is requested by Heroku
added LICENSE

 - LICENSE was created when the GitHub repository was created
added resolution

 - viewport resolution has been added
added favicon
changed README

 - installation guide has been added
Merge branch 'master' of https://github.com/kikuomax/ochimikan-rails