- Added fix for USB Current Change
  * If called during interrupt, could hang the I2C bus
  * Delaying I2C writes till scan loop

- Each scan module now has a current change callback which passes the available current as a parameter
- No longer attempts to use the max 500 mA immediately, starts with 100 mA then goes to 500 mA after enumeration
- If enumeration fails due to bMaxPower of 500 mA, then attempt again at 100 mA (might also be possible to go even lower to 20 mA in certain cases)
- Now working with the Apple Ipad (no over-power messages)
- Fixed Wake-up behaviour on Apple Ipad (and likely other iOS devices)
- More effecient set_feature/clear_feature handling (device handler)
- Initial power handling via Interconnect (still needs work to get it more dynamic)

The example scripts include hardcoded values that
do not work for everyone. Instead of requiring the
files to be edited (and dirtying the git tree),
allow them to take command-line arguments.

Also adds better guidance for Mac OSX virtual
serial ports.

bash might not be in /bin. Don't expect it there.

- Works for all nodes in chain
- Synchronized to 30 ms update rate (required for ISSI chip)
  * Interconnect cannot handle full update speed from Scan module
  * Though it should be able to handle quite a bit more than 30 ms updates

- 6 modes
  * Single led: decrease, increase, set
  * All leds: decrease, increase, set
- Currently update speed limited to once every 30 ms
  * Likely an I2C driver or ISSI limitation preventing even faster updates

- Adds override functionality in main module

- Changing header file ifndef define to pragma once's
- Removed duplicate output_com.h's

- Basic screen initialization and clear is working
- Currently SPI is set to a low speed for easy logic analyzer debugging

- Not ready for advanced support yet
- Basic register and page writing support complete