The latest Doxygen has changed the footer.html substantially from the
much older version we were using. Add some Hamlib project specific
information to it.
Align hamlib.cfg.in to the latest Doxygen.
Reduce hamlib.css to only those elements needed for Hamlib
customization.
Add hamlib.png as a project logo.
New CSS file, added Doxygen logo to footer, tweaked hamlib.cfg.in for
Doxygen configuration. Minor edits to index.doxygen.
Minor Doxygen edits to rotlist.h and network.c
git-svn-id: https://hamlib.svn.sourceforge.net/svnroot/hamlib/trunk@3035 7ae35d74-ebe9-4afe-98af-79ac388436b8