Add "justification" keyword to the "annotate" method.  Allows user to
center text on the specified point. [1303]
make setEnhancement accept the "full path" to an enhancement table like
setProjection.  Unfortunately, can't make setProjection accept the
"short name" due to how IDV stores projection names.  Also, can't be
insensitive for same reason... [1303]
Doesn't matter, but I didn't realize there was a plain old "split"... [1303]