WIP

Just commented out the master branch's output code for now, and fixed a bug in TestDrive.ps1.

I'm thinking that before I bother trying to figure out how to "merge" the output schemes of the two branches, I should just move the core API separation along.  Eventually, I suspect we'll have something like event handlers (probably in the form of ScriptBlock objects) that the language modules register with the core API.  Then each module can define whatever logic it likes for strings and colors, and we don't need to have big tables with information that some modules don't even need to use.