Setting a numerically versioned pattern to the file with the highest version...

Setting a numerically versioned pattern to the file with the highest version no longer pads zeroes in front of the version returned by GetHighestVersionNumber()

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@4236 41f8697f-d340-4b68-9986-7bafba869bb8