Make a build matrix with diff. numbers of engines.
Test on 1 and 9 engines rather than 4.
Check for a cluster in ContextTestCase.
Split off ClientTestCase from ContextTestCase.
Remove a line of whitespace.
Have TestCountRoundTrips be a ClientTestCase.
Have TestContextCreation be a ClientTestCase.
Make TestKeyAndPushArgs a ContextTestCase.
Make TestDecoratorBase a ClientTestCase.
Make TestVectorizeDecorator a ContextTextCase.
Make it work on Python 2 and Python 3.
Refactor apply to not call _really_apply.
Merge pull request #508 from enthought/feature/test-with-9-engines

Test with 1 and 9 engines instead of 4 (on Travis)
Merge pull request #512 from enthought/refactor/context-doesnt-use-really-apply

Refactor `apply` to not call `_really_apply`
Add the mailing list and IRC channel to README.rst.
Merge pull request #514 from enthought/feature/document-mailing-list-and-irc

Add the mailing list and IRC channel to README.rst.
Remove unused import.
Tweak skip message.
Fix PEP8 nit.
Merge pull request #511 from enthought/feature/skip-tests-without-cluster

Skip tests that need an ipcluster if one isn't available