Updated logDesign.html to reflect that admins or users can appear as the reponsible invid and name.
Set stylesheet for logDesign.html
Add a link to the logDesign.html file from the doc index
Added tests for StringUtils.split() and containsAll()
Added containsAll() static method in StringUtils.

Really should have been in last commit.
Simplified IPv4Range class in gasharl schema
Header tweak StringUtils.containsOnly()
Replaced my buggy StringUtils.split() with use of java.util.regex.Pattern quote and split.