Update Travis to include Ruby 2.1 and HEAD builds.
Remove `jruby-20mode` since there is no such thing.
Merge pull request #51 from krisleech/update-travis

Update Travis to include Ruby 2.1 and HEAD builds.
update to latest rspec 3 release candidate
Fix rbx on Travis
Respond to krisleech/wisper#47 issue

Remove the should syntax from spec_helper to only use expect syntax
Fix the following specs to use the expect syntax
  these are all the specs that was using should syntax

-wisper_spec
-rspec_extensions_spec
-simple_example_spec
-integration_spec
-global_subscribers_spec
-publisher_spec
Update ruby 2.1 to latest patch
Merge pull request #55 from padi/update_travis

Update ruby 2.1 to latest patch
Merge pull request #54 from artmees/master

Convert the specs to use the `expect` syntax instead of the `should` syntax
Remove obsolete comment
Merge branch 'master' into feature/subscribe_many