Uwe Hermann: Simplify the manpage by removing lots of redundant information which is

already in the README or texinfo (and which needs to be updated
relatively often -- list of authors, list of supported JTAG devices etc).

git-svn-id: svn://svn.berlios.de/openocd/trunk@379 b42882b7-edfa-0310-969c-e2dbd0fdcd60