examples/udp:  Change build so that both server and client can be on a target, rather than one on the target one on the host PC.

examples/udp:  Fixe registration as a built-in program; Change some naming to make room for a second target.  Current one endpoint is the target and one is the host.  This will (eventually) allow two targets to be both endpoints of the test.

examples/udp: Add configurable network device name; Add option to suppress network initialization which is not needed if started by NSH or for 6LoWPAN.

fix copy-paste typo in nsh_usbconsole.c

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Switches IEEE 802.15.4 based code to using byte arrays instead of uint16_t values for short address and PAN ID

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Switches IEEE 802.15.4 based code to using byte arrays instead of uint16_t values for short address and PAN ID

Merged in lukegluke/apps/lukegluke/correct-copypaste-typo-in-comments-in-co-1497814194757 (pull request #89)

correct copy-paste typo in comments in composite_main.c

Approved-by: Gregory Nutt <gnutt@nuttx.org>

NSH network initialization:  Do not set the IP address for 6loWPAN.  The 6loWPAN stack uses IP address that derive from the ieee 802.15.4 addressing and cannot be (safely) configured by the user.

NSH: Fix some ieee 802.15.4 initialization logic.  It should not set the saddr or panid; those cannot be hard-coded but must come from the coordinator.

wireless/ieee802154: Rewrites i8sak to be test CLI for IEEE 802.15.4 MAC layer

Approved-by: Gregory Nutt <gnutt@nuttx.org>

remove extra semicolons

Approved-by: Gregory Nutt <gnutt@nuttx.org>

The dedicated windows tool at APPSDIR/tools/mkkconfig.bat uses , which is not a windows shell variable, and is left uninitialized, but in fact should be the current directory.

nshlib: Fix a resource leak in cmd_hexdump()

Approved-by: Gregory Nutt <gnutt@nuttx.org>