#27, #33 - Calculate distance properly.  To do this requires the use of
a square-root function, hence the addition of the MATH EE.  While
rebuilding the project to produce the Math.class file, I hit a
compilation error in UI.java, for a missing constructor, SetData( Float,
Unit ).  For now, I've added that constructor to SetData.java, but it's
not clear precisely when or how this issue was injected.

This commit also includes the following files that were not previously
in the Git index:
Debug/.gitignore
bin/library/UI$GuiConnection.class
bin/library/UI.class
bin/uidatatypes/Unit.class
bin/uiinterfaces/IActionsAndDataFromProvider.class
bin/uiinterfaces/IActionsAndDataToProvider.class
javasrc/lib/MATH.java
bin/lib/MATH.class
I created the final two to provide access to the square-root function,
so I'm confident that adding these into the Git index is correct.
However, I'm less confident about the others, as they may have been
intentionally left out, perhaps because they include path names that are
specific to a particular Eclipse installation.

This version runs fine with Verifier now.