Removing `included()` and `missing()` from `Test` command.
Removing `included()` and `missing()` from `Test` command.

`missing()` has been disfunctional. This method has been reimplemented in
the lithium_qa project. See: http://dev.lithify.me/lithium_qa/commits/view/322fc132d8f41240e8ac9470684ee1dd7e4929d8.

`included()` wasn't providing a lot of benefit and has been removed
without a replacement. It was showing just files included by the command
itself not the classes included by a test run.

mehlah/lithium,jails/lithium,pixelcog/lithium,SensCritique/lithium,muyehub/lithium,jails/lithium,whowgames/lithium,UnionOfRAD/lithium,datachand/lithium,UnionOfRAD/lithium,muyehub/lithium,davidpersson/lithium,qoqa/lithium,graphis/lithium,wbeater/lithium,graphis/lithium,m4rcsch/li3_framework,UnionOfRAD/framework,mehlah/lithium,pixelcog/lithium,SensCritique/lithium,whowgames/lithium,m4rcsch/lithium-core-library,datachand/lithium,davidpersson/lithium,qoqa/lithium,wbeater/lithium,m4rcsch/lithium-core-library