Remove StripeMe
Match documentation with reality

The correct behaviour is tested and described in monthly_spec.

Fixes #191
Resetting count should clear validation

The "should raise_error" test was not working with newer RSpec. It
should probably just be nil and not raise an error anyway.
Split up confusing specs
Delete redundant test

This is well tested in monthly_spec already

Fixes #192
Merge branch 'master' into international

Conflicts:
	spec/examples/ice_cube_spec.rb