Dropped some unused new... methods from ContainMethods.
Pass actual map type to ResultOfContainWordForMap, so I can give it to ResultOfNewContainWord.
Pass concrete traverable type to ResultOfContainWordForTraversable, so I can
pass it to ResultOfNewContainWord.
Extend ResultOfNewContainWord in ResultOfContainWordFor Map and Traversable
Dropped theSameElementsAs from ContainMethods and added it to ResultOfNewContainWord.
Add reminders to our test and runsuite targets.