test suite is incompatible with rspec 3
make test suite compatible with rspec 3.0
Fix rspec version to 2.x
Only save the model if it's new or has been changed (fixes #23)
Bump version to 0.2.6
Merge branch 'feature/rspec' of github.com:partial/active_importer into partial-feature/rspec

Conflicts:
	active_importer.gemspec