Cleanup and refactor board-specific stuff into separate files.
Use DHCP for IPv4.
Cleanup config.
OWCFG_DIR_OUT is deprecated, move gpio direction setting to _OUT_LOW and
_OUT_HIGH macros.
Add separate directories per board to hold both code and board-specific
config files.
Fix board specific defines.
More adjustments for board-specific stuff.
First draft for Tiva Connected launchpad.
Reorganize config files a little more. pos/nos/netcfg.h files now
have board -specific "override" file.
1-wire and rest of system now works on launchpad.
HTTP client stack overflows, increase size a little.
Move some common driverlib stuff to pos_cmsis.h.
Trim stack sizes down to avoid wasting memory. Try to leave about 100
byte safety margin.
Add thread prefix to console trace messages. Format 1-wire trace into
temporary buffer to avoid messages from sensor & http threads being
mixed up at console.