- Reduced multipliers for odd sizes by one in usb_ov511_set_packet_size().
- Changed MAX_FRAME_SIZE, DEFAULT_WIDTH, and DEFAULT_HEIGHT to 320x240.
- Moved initial reset from ov511_probe() to usb_ov511_configure()
- Removed "usb" from beginning of name of ov511_probe(), ov511_reg_write(),
  ov511_reg_read(), ov511_reset(), and ov511_set_packet_size().
- Renamed usb_ov511_cam_reg_write() and usb_ov511_cam_reg_read() to 
  ov511_i2c_write() and ov511_i2c_read().
- Rewrote ov511_i2c_write() and ov511_i2c_read() for better reliability
- Added dummy I2C read upon init to get I2C in sync