remove custom.yml 

Just copy the normal rails connector configuration
rails_connector.yml and custom_cloud.yml to the 
config folder of the kickstarter instead.
Fix documentation
Update README.md

Configuration files setup
Merge pull request #105 from cedrics/remove_local_yml

Remove local yml
Merge branch 'develop' into feature/column_widget

* develop:
  Update README.md
  Fix documentation
  remove custom.yml
check in test_app for better diffs during development

+ randomly generated files like mirgrations are ignored and not included
+ generated configuration files are not included
+ adopted gem .gitignore file and added comments

fixes #117
Merge branch 'develop' into feature/column_widget

* develop:
  check in test_app for better diffs during development

Conflicts:
	CHANGELOG.md