Develop a gradle plugin to automatically update testCompile dependencies
to include the test source sets of project dependencies.
Allows the gradle build to more closely mirror the way that tests run
inside eclipse.
Previously the 'merge from' project's configurations exclude rules were
not used in the dynamically created 'merge into' project configurations.
This meant that the pom generation for 'merge into' project did not
exclude the dependencies from the 'merge from' project's configuration
excludes.
Now the exclude rules are copied into the dynamically created
'merge into' project's configurations.
