[SQUASH ME] netapi: address @OlegHahm's comments + some formatting
[SQUASH ME] netapi: add demuxing context to reg command
[SQUASH ME] netapi: make current_thread registration inline
[SQUASH ME] netapi: add missing periods
[SQUASH ME] netapi: rename netapi_send_data and netapi_send_data2
Merge branch 'network-layer-interface' into uart_net
[SQUASH ME] slip: fix usage on netapi_send_data