Initial support for tm4c129x
Merge branch 'master' into tm4c129x
added booster pack 2 pins, leds and pushbuttons
Revert "added booster pack 2 pins, leds and pushbuttons"
I committed in incorrect location

This reverts commit b41766faf2197439d7c65dbce3082a4d6c918d99.
added booster pack 2 pins, leds, pushbuttons, SNOWFLAKE_RA0 processors enable through port T
fixed some typos and corrected defs
Fix define for Blizzard Target

Change TARGET_IS_BLIZZARD_RB11 -> TARGET_IS_BLIZZARD_RB1
Fix hardcoded sysclk values values to be based on F_CPU
Merge branch 'master' into tm4c129x
Add WInterrupt for Snowflake class devices
added SPI support for dktm4c129, added serial flash example
analogIn implemented and verified, added test sketches
Merge remote-tracking branch 'upstream/tm4c129x'
Remove not beloning .swp file
Change linker script to be based on entry in boards.txt
Merge branch 'tm4c129x' of https://github.com/energia/Energia into tm4c129x
Update linker entry in boards.txt
Fix misplaced #endif
Remove PORT R, S, T int handlers for Blizzard
Add register systick interrupt callback feature