Make startup for the various server ports be quiet, unless
debugging is active:  don't emit needless scarey messages.
Update the relevant documentation and its references:

 - For these port commands ... cover the default values;
   convert to @deffn syntax; include their use outside of
   the configuration stage; and alphabetize.

Similar updates to the rest of that small chapter:

 - Highlight that there even *IS* a configuration stage, after
   which some command functionality is no longer available.

 - For GDB commands ... convert to @deffn syntax; alphabetize;
   include a missing command (!); add missing helptext (!) for
   one non-missing command; update relevant cross-references
   and index entries.


git-svn-id: svn://svn.berlios.de/openocd/trunk@1909 b42882b7-edfa-0310-969c-e2dbd0fdcd60