[SQUASH ME] netapi: silence valgrind
[SQUASH ME] netapi: Add option to get default source length
[SQUASH ME] basic_mac: Add option to get default source length
[SQUASH ME] sixlowpan.core: enable iphc if available
[SQUASH ME] tests: Add flags for static deactivation of sixlowpan_hc
[SQUASH ME] tests: remove hc_enable set for receive tests
[SQUASH ME] tests: Add option getter to framework mac layer
[SQUASH ME] tests: start first compression send test
Merge branch 'network-layer-interface' into 6lowpan-fix-major