Documentation updates
Fixes for the examples/nxtext test
STM32 option to disable sleep to prevent disconnection of debugger
configs/mikroe-stm32f4:  Add new configurations plus support for the MIO283QT2 display from Ken Pettit
Fix for lpc17xx i2c single byte read timeout error problem from M.Kannan
Fix typo is STM32 ADC driver for F2 and F4:  ADC not ACD