First fix, test to make sure we output something before attempting to
fetch its length.  Now onto, why no version number?

This refers to issue #25.
FILEVERSION now does a full $PARSE followed by a $SEARCH.  In the event that
$SEARCH fails, a version number of just ";" is returned.

This closes #25.
Merge pull request #26 from endlesssoftware/issue-25

Fix FILEVERSION