Add support for integration tests

You mention integration, functional, and acceptance tests, but then describe a plugin that only seems to address one. Would this plugin merely add one more set of tests for integration tests? It seems like it would be nice to have a plugin that could add additional tests of whatever name makes sense. An example of a tests DSL below.

tests {
  intTest extendsFrom test
  accTest extendsFrom test
  otherTest extendsFrom intTest, accTest
}