Merge branch '19-gdiff-for-jsonnode-utterly-broken' into 'master'

Resolve "gDiff for JSONNode utterly broken"

Closes #19

See merge request !4
2 jobs for master in 40 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #22525
build

00:00:40

failed #22518
build

00:00:34