Bump to version 0.4.1.
Add spec_helper file to require specs and matchers.

Also, move the '_extensions' file to '.extensions'.
Add 0.4.1 generated scripts.
Test cleanup.
Remove 'should's and 'should not's.
Change snake_case to camelCase.
Use jasmine.createSpyObj instead of individual spies.
Use slider template and remove unnecessary commas.