Update the "Reset Configuration" information in the User's guide:

 - Convert to @deffn syntax
 - Move tutorial text from command descriptions into new sections
 - Describe several different types of JTAG-visible reset
 - Expand descriptions of configuration tweaks for SRST and TRST 
 - Link to the "reset" command, and vice versa
 - Bugfix the "reset_config" description (it didn't match the code)

Plus, be more proscriptive:  do it in board config files, except for
the oddball cases where that won't work. (Current target.cfg files
seem to have much goofage there; several seem board-specific.)


git-svn-id: svn://svn.berlios.de/openocd/trunk@1913 b42882b7-edfa-0310-969c-e2dbd0fdcd60