Add rspec-support to gem file.
Update to latest matcher protocol.
Deal with APIs that have been removed from rspec-expectations.

The expression generator got removed.
Make this spec compatible with new fuzzy matcher support.

The fuzzy matching calls `===` on each arg, passing an arg,
but lambda { } allows no args.
Cleanup whitespace.
Merge pull request #11 from rspec/rspec-3-fixes

Rspec 3 fixes