- added mips software breakpoint support

- changed some jtag LOG_DEBUG to only output when _DEBUG_JTAG_IO_ defined. Makes debugging other parts of openocd not as noisy
- updated correct jtag id for pic32mx

git-svn-id: svn://svn.berlios.de/openocd/trunk@1313 b42882b7-edfa-0310-969c-e2dbd0fdcd60