- Fixing two compiler warnings

- Reducing  stack usage for recursive scripts
- Do not exit on bogus arguments to reset_config. No longer exit the application upon bogus arguments to reset_config, but return errors.

thanks to Øyvind Harboe for these patches.

git-svn-id: svn://svn.berlios.de/openocd/trunk@226 b42882b7-edfa-0310-969c-e2dbd0fdcd60