Upgrade to JUnit 4.11

Fix a conflict with Hamcrest matcher classes that was previously fixed
by classpath ordering. This brings JUnit's Hamcrest dependency up to
version 1.3, which is _more_ compatible with rest-driver and its
dependencies.

Also added some basic midje facts to sanity check rest-cljer, run them
with: lein midje.
Merge pull request #3 from joelittlejohn/junit411

Upgrade to JUnit 4.11
Add unit tests
Update project version prior to build
Prepare project for next release cycle
Update readme to point to latest version
Incremented rest-driver version to 1.1.30
Added ability to specify a clojure map as request body
Updated readme to reflect request map usage
Updated readme with an extra "
Merge pull request #4 from mantree/master

Added ability to specify a map as the body of the request
Update version number for next release cycle
Update readme to point to latest version
Added some sweetening to response definitions
Merge pull request #5 from mantree/master

Added some sweetening to response definitions
Bump version number for next release cycle
Update to latest version in README