Sourceforge ticket #26: STM32 up_prioritize_irq should not be called if CONFIG_ARCH_IRQPRIO is not defined
Zneo Serial:  Fix cut'n'paste error in some conditional configuration
ZNeo Serial:  Need to configure UART1 alternate function
Zneo:  Fix UART1 buffer setup
Zneo:  Misc minor updates from debugging
Zneo:  ESPI needs to configure GPIO for ESPI
Minor/cosmetic changes
Minor updates to READMEs and comments
Fix spelling, only one t in exiting