[ooxml-branch] Split the common ss interfaces into two sets - one that works with jdk 1.5 and has the full functionality, and another that works with jdk 1.4 and only has dummy functionality. Update build.xml to spit out two versions of the main classes, one for jdk 1.5 with the full interfaces, and one for jdk 1.4 with the dummy ones (but which is otherwise like the current behaviour). Also add readme explaining all this
Applying the copy2license.pl script (with tiny modification to allow for more whitespace than it expects in the POI header) to all files. ant jar succeeds, and the svn diff has been verified by eye. Still more files to do, this is the first pass.