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- The camera detection is now more intelligent and efficient. This is an attempt
  to eliminate the "Failed to read sensor ID" problem that many people have.
- Added "i2c_detect_tries" module parameter.
- OV7610 reg COM_F default changed from 0x90 to 0xA2. Bit 2 must be 1 according
  to the 7620 spec, and I assume the same here.
- Added aperture parameter. Values are from 0 - 15 and are sensor specific.
  Value is written to the upper nybble of 7610/20 reg COM_F.
- ov6710_configure() renamed to ov76xx_configure()
- moved OV511 reg defaults from aRegvalsNorm7610[] to aRegvalsNorm511[]
- moved OV76xx specific code from ov511_configure() to ov76xx_configure()
- added version constant
- updated memory management functions
- proc filesystem support added
- minor changes in ov511_read()
- ov511_configure() now sets frame->depth and frame->segment; this fixed read
- ov511_probe() modified to use custom ID table
- ov511.h: PDEBUG updated to print function name and line number
- ov511.h: Added proc fs vars to usb_ov511