linecap: Reintegrating finished LineCap feature
    Patch contributed by Regina Henschel
    http://svn.apache.org/viewvc?view=revision&revision=1232507

    disable extended linecap API for now.

    gnumake4 work primarily from Mathias Bauer
    http://svn.apache.org/viewvc?view=revision&revision=1394326

    misc. dead code cleanups
    Patch contributed by Ariel Constenla-Haile
    http://svn.apache.org/viewvc?view=revision&revision=1204995
    http://svn.apache.org/viewvc?view=revision&revision=1207270