Updated AUTHORS, COPYING, DISCLAIMER, and INSTALL files. Added
standardized headers to all source file to clearly indicate the
copyright, license, and to give credit where credit is due.
added a few more stub headers,
fleshed out a few stub headers,
added a FIXME file,
added various compatibility macros
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@25 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c