Specify javac source and target versions.  Default both to 1.3.  Folks can override with 'ant -Djavac.source=XXX'.  Patch from Brion Vibber.  Bug #34544.
Specify javac source and target versions.  Default both to 1.3.  Folks
can override with 'ant -Djavac.source=XXX'.  Patch from Brion
Vibber.  Bug #34544.


git-svn-id: 4c5078813df38efa56971a28e09a55254294f104@162067 13f79535-47bb-0310-9956-ffa450edef68

adichad/lucene-new,adichad/lucene,tokee/lucene,adichad/lucene,adichad/lucene-new,tokee/lucene,adichad/lucene,adichad/lucene-new,tokee/lucene,tokee/lucene,adichad/lucene-new,adichad/lucene,adichad/lucene,adichad/lucene-new