Reorganized tests in to groups
Initial work to support sharing tests between multiple containers
Removed container specific logic from tests

This is no longer needed now that we have the scripted plugin configured
to run these tests once for each container
Moved ContainerDep class up a directory

This is so it won't get picked up if you try to run all scripted tests
Disabling Tomcat support in the common webapp tests until #113 is fixed
Added a missing comments.
Merge pull request #118 from cdow/shared-container-tests

Added support for sharing tests between multipe supported servlet containers