Update with new features

I'm sending this update with a few new features for the RAMBo Uploader. Most noteable new features are :
- Added windows support
- Automatic detection of serial number (only works on windows for now)
- separate configuration file to control the test process
- Use of the serial number to detect the controller and to ignore boards (if you have a printer connected to the same PC)
- Use of avrdude class to program/verify the ICSP (configurable)
- Added log file support instead of database (configurable)
- Removed homing (not needed for new jig design)