fixed reversed bit on gpio pin interrupt edge setup
added macro to set interrupt priority
add ds18b20 to make file, fix typo
adc CLI command
(cherry picked from commit a8821b8801633610d389bf25231f39e03efde0ae)
fix some typos and text
add CatNip board as an option to projectconfig.h
add CFG_SSP0_SCKPIN_0_10 option to ssp core driver
add SSP command to CLI
merged from master
small SSP demo