- fixed arm926 cp15 command bug (thanks to Vincent Palatin for this patch)

- fixed compiler warnings throughout the code (thanks to Vincent Palatin for this patch)
- added support for accessing ETB (embedded trace buffer) registers


git-svn-id: svn://svn.berlios.de/openocd/trunk@134 b42882b7-edfa-0310-969c-e2dbd0fdcd60