#8 Now printing is done through a TraceTarget.
-Also removed the _excludeLastItemsNo option, as it's very unlikely it will be needed by any developer.
#7 Now that tdt outputs to a log target, we can unit test its output. Added two more unit tests to tdtTest, and two to InspectableArrayTest.
#11 Added instructions for using InspectableArray.
#7 Forgot to include StringLogTarget, which both unit tests use.