Bootstrap of the project
Add rvm presets
- Change test framework to rspec
- Remove unused gems
Update gemfile.lock
Update database.yml
Update gitignore
Add rails_helper for testing
Add rspec config file
Create Country entity
Create PanelProvider entity
Add relationship between Country and PanelProvider
Create Location entity
Create relationship between Country and Location
Create LocationGroup entity with relationships with Country and PanelProvider
Create TargetGroup Entity with relationships
Add a has_many child_target_groups relationship to TargetGroup
Create Location HABTM association with LocationGroup
Create relationship between Country and LocationGroup
Add relationship between Country and TargetGroup
Implement TargetGroup#is_root_node?