provides a better impeadance match for debug output char fn's, e.g. eCos.
- Line endings are now added at the caller site of command_print*(). command_print()
  still adds a line ending
- echo of commands in scripts are now available via debug_level instead of
  forced echo
- Added a USER_SAMELINE() for printing without a lineend.


git-svn-id: svn://svn.berlios.de/openocd/trunk@364 b42882b7-edfa-0310-969c-e2dbd0fdcd60