"num_threads" should be "overflow_policy" as the former is unused
Merge pull request #129 from sheaney/chore/clean_up

"num_threads" should be "overflow_policy" as the former is unused
Added Glitter basge to README
Updated maintainers and contributers in the README
Upgraded to RSpec 2.99
Ran transpec with RSpec 2.99 but now have 29 failing specs.
Upgraded to RSpec 3.0. Now have 26 failing tests.
Fixed broken Obligation specs.
Fixed broken Actress specs.