treehouses services planet updates

[kjong]

It looks like the local tags were removed from db-init and planet, resulting in manifest errors when pulling planet.

Planet yml needs updating:

echo "  db-init:"
  echo "    image: treehouses/planet:db-init-local"

to

echo "  db-init:"
  echo "    image: treehouses/planet:db-init"

and

echo "  planet:"
  echo "    image: treehouses/planet:local"

to

echo "  planet:"
  echo "    image: treehouses/planet"

Also need to add yml creation to treehouses services planet up.

[dogi]

https://github.com/treehouses/builder/blob/master/scripts.d/40_planet.sh#L26-L32