Update code to work with Mockito 1.9.5.
This gets us on a new enough version of Mockito to try using the MockMaker extension point.
Updated tests to use Mockito.mock instead of MockitoGroovy.gmock
Goal of this branch is to use the MockMaker extension point to turn mockito-groovy-support into a drop-in fix.
Put our MockitoConfiguration class in the expected place.
Originally we'd forced the user to subclass GroovyMockitoConfiguration, but it seems more graceful to just work automatically as a drop-in fix. Still thinking about the best way to work alongside other Mockito extensions, but that seems to be a less pressing problem.
Next release is 1.2.
Merge branch 'master' into integrate-using-mockmaker-extension-point

Conflicts:
	README.md
Lump everything into one package because the right division isn't clear yet.
Implement GroovyCglibMockMaker as an exact copy of Mockito's default CglibMockMaker.
Declare a type more broadly, so that this will be usable in GroovyCglibMockMaker.
Made GroovyCglibMockMaker use the right interceptor (in one of its methods).
Use MockMaker extension point instead of MockitoConfiguration:
* Delete old MockitoConfiguration and GroovyAnswer classes.
* Register GroovyCglibMockMaker in mockito-extensions/org.mockito.plugins.MockMaker
* Make GroovyCglibMockMaker declare that it implements MockMaker.
Rearrange and reformat tests.
Implement resetMock in GroovyCglibMockMaker.
Delete MockitoGroovy, since we no longer need to use it that way.
Update README.
Version 1.2.
1.2's tagged and released, so I guess any new work is going towards 1.3.