Add protective macros for avoiding compile-time errors when not using I2C.
Move GPT and EXT test files into GPT_EXT directory.
Change GPT_EXT test to IAP mode.
Change #ifdef ENABLE_IAP to #if ENABLE_IAP.
Submodule commits.
Add support for LPC1768 automatic ISP.
Fix I2C bugs by adding delay. There should be a better way.
Change test iteration to 10.