Add in rspec testing
Add in Travis CI support
fix broken test logic
Merge branch 'travis' into develop

Conflicts:
	spec/argumental_spec.rb
Fix travis-ci / bundle env
Merge branch 'release/1.2.0' into develop
Moved validation code
Merge pull request #3 from davidcollom/develop

Increase Code coverage
Added more tests and fixed nesting
Set version to 1.3.0 in lib/argumental/version.rb
Release Notes updated
Merge branch 'release/1.3.0'