Add Apache 2 license and Hootsuite copyright to all golang
files. Add a disclaimer that the files have been modified
hereafter by contributors to this repo in order to abide
by the Apache 2 license requirements.
- this option is now required which breaks BC
- will validate that an event is coming from a repo that we trust
- started refactoring event_controller tests to use less mocks
- Refactor EventParser so it returns a comment we can send to the pull
request when a bad command or help command is commented.
- Remove now unneeded HelpExecutor because we comment right from the
EventsController now
- Use pflag package to parse commands instead of doing it manually
- Comment back when user types terraform instead of atlantis
