app.lua: Fixed typo s/monotinic_now/monotonic_now/.
app.lua: Fixed typo s/monotinic_now/monotonic_now/.

Closes #183.

Igalia/snabb,wingo/snabb,wingo/snabb,eugeneia/snabbswitch,aperezdc/snabbswitch,Igalia/snabbswitch,alexandergall/snabbswitch,dpino/snabb,lukego/snabb,dwdm/snabbswitch,snabbco/snabb,kellabyte/snabbswitch,lukego/snabb,snabbnfv-goodies/snabbswitch,alexandergall/snabbswitch,heryii/snabb,Igalia/snabb,virtualopensystems/snabbswitch,dwdm/snabbswitch,SnabbCo/snabbswitch,wingo/snabb,dpino/snabbswitch,kellabyte/snabbswitch,mixflowtech/logsensor,fhanik/snabbswitch,snabbco/snabb,Igalia/snabb,eugeneia/snabb,pirate/snabbswitch,javierguerragiraldez/snabbswitch,snabbco/snabb,lukego/snabbswitch,kellabyte/snabbswitch,mixflowtech/logsensor,justincormack/snabbswitch,kbara/snabb,plajjan/snabbswitch,pirate/snabbswitch,andywingo/snabbswitch,fhanik/snabbswitch,SnabbCo/snabbswitch,dpino/snabb,dpino/snabb,eugeneia/snabb,justincormack/snabbswitch,lukego/snabb,alexandergall/snabbswitch,plajjan/snabbswitch,xdel/snabbswitch,eugeneia/snabb,SnabbCo/snabbswitch,alexandergall/snabbswitch,snabbnfv-goodies/snabbswitch,alexandergall/snabbswitch,kbara/snabb,plajjan/snabbswitch,snabbco/snabb,heryii/snabb,Igalia/snabbswitch,virtualopensystems/snabbswitch,alexandergall/snabbswitch,wingo/snabb,eugeneia/snabb,justincormack/snabbswitch,virtualopensystems/snabbswitch,Igalia/snabb,lukego/snabb,aperezdc/snabbswitch,kbara/snabb,snabbco/snabb,lukego/snabbswitch,dwdm/snabbswitch,snabbco/snabb,Igalia/snabb,wingo/snabbswitch,plajjan/snabbswitch,hb9cwp/snabbswitch,Igalia/snabbswitch,andywingo/snabbswitch,javierguerragiraldez/snabbswitch,hb9cwp/snabbswitch,Igalia/snabb,lukego/snabbswitch,eugeneia/snabb,Igalia/snabbswitch,mixflowtech/logsensor,andywingo/snabbswitch,xdel/snabbswitch,eugeneia/snabb,pavel-odintsov/snabbswitch,heryii/snabb,Igalia/snabbswitch,mixflowtech/logsensor,snabbco/snabb,dpino/snabb,Igalia/snabb,heryii/snabb,wingo/snabb,hb9cwp/snabbswitch,alexandergall/snabbswitch,dpino/snabb,hb9cwp/snabbswitch,dpino/snabbswitch,eugeneia/snabb,heryii/snabb,pavel-odintsov/snabbswitch,andywingo/snabbswitch,wingo/snabbswitch,dpino/snabb,Igalia/snabb,mixflowtech/logsensor,SnabbCo/snabbswitch,xdel/snabbswitch,kbara/snabb,eugeneia/snabbswitch,javierguerragiraldez/snabbswitch,lukego/snabbswitch,eugeneia/snabbswitch,fhanik/snabbswitch,wingo/snabb,eugeneia/snabbswitch,heryii/snabb,aperezdc/snabbswitch,justincormack/snabbswitch,eugeneia/snabb,wingo/snabbswitch,snabbnfv-goodies/snabbswitch,kbara/snabb,aperezdc/snabbswitch,dpino/snabbswitch,snabbnfv-goodies/snabbswitch,pirate/snabbswitch,snabbco/snabb,dpino/snabbswitch,wingo/snabbswitch,pavel-odintsov/snabbswitch,dpino/snabb,alexandergall/snabbswitch,kbara/snabb