extracted code related to tenant depended model into a separate method for further reuse
Big refactoring
finally removed all those requiraments of config file
small refactoring
preparation for default/manual behaviour
Merge branch 'master' into refactoring
Refactoring:
- removed all those conf file requiraments
- changed configuration approach little bit
fixed db credentials for Travis
Merge branch 'master' into refactoring

Conflicts:
	spec/spec_helper.rb
Merge branch 'master' of github.com:eugenekorpan/multitenant-mysql into refactoring
updated changelog
Merge pull request #21 from eugenekorpan/refactoring

Refactoring