Add Travis Database

	modified:   .gitignore
	renamed:    config/database.yml -> config/database.default.yml
	new file:   config/database.travis.yml
	modified:   db/seeds.rb

	modified:   Gemfile
	modified:   Gemfile.lock
	modified:   db/seeds.rb
Merge branch 'master' of github.com:PhilippeGeek/OnlineClassroom