Normalize methods to symbols to get spec to pass on 1.8.7.
Remove obselete cucumber scenario.

With the changes for the new syntax, and the available config options,
`stub`, `should_receive` and `should_not_receive` are added to every
object initially (before RSpec::Mocks.setup) is called, but the config
can be set to remove them.
Fully qualify all constants.

On 1.9.2 I was getting failures like:

uninitialized constant BasicObject::Hash