The dependency conditional for RPL was at the very end of
`Makefile.dep`, giving depending modules no chance to pull in their
dependencies.

Also it pulled in the deprecated module `net_help`, though it did not
use any of it's functions (it just included `inet_pton.h` for `AF_INET6`).

gnrc: rename ng_netbase to gnrc

ng_rpl: port to the new network stack

gnrc: null pointer checks

Just to tranquilize clang analyzer

In practice, this should not happen, since `_first_unused` should be
already set, if `_too_small_hole()` returns true.

IPv6: implement source address candidate selection

Anycasts are not explicitly forbidden according to RFC6724, Appendix B.

see http://tools.ietf.org/html/rfc6724#section-4 and
http://tools.ietf.org/html/rfc6724#section-5

Added a colored outputter to embUnit.

cpu: lpc2387: provide periph/* implementations, update to use newlib module.

examples: rename ng_networking to gnrc_networking

ng_sixlowpan: fix #3588

udp: put UDP header in its own module

The outputter is called ColorTextOutputter and can be enabled by defining OUTPUT=COLORTEXT.
The colored outputter behaves just like the TextOutputter, but displays successful tests in GREEN and failed tests in RED. The summary message is also in GREEN/RED, but is slightly different from the TextOutputter.

Also:
* Added fancy simple none-verbose color-outputter for EmbUnit. The outputter outputs a simple statistics line in GREEN or RED, according to the test success or failure. (Also, the ColorTextOutputter was adjusted to use the statistics output of this new ColorOutputter.) The new outputter can be activated with OUTPUT=COLOR.
* Added a single character "." output for the simple color outputter and replaced the color codes by macros.

ipv6: move non-GNRC types and functions in their own module

sys/include/net/ng_ipv6/netif.h: docfix

ng_networking: configure as router per default

dist/testbed-support: make experiment name configurable

ng_pktbuf_static: check if pkt is in buffer before derefencing in ng_pktbuf_release

make: ccache: set ccache basedir to RIOTBASE

boards/mulle: cleanup

Remove old syscalls implementation from before cortexm_common unification and sys/newlib introduction.

adding wakaama pkg

dist/tools/sniffer: Fix usec calculation