Use the same registration order inside the packs register API as we do in st2-register-content script.
Use the same registration order inside the packs register API as we do
in st2-register-content script.

This way the output and error are reported in the same and consistent
order.

StackStorm/st2,nzlosh/st2,peak6/st2,StackStorm/st2,Plexxi/st2,peak6/st2,tonybaloney/st2,Plexxi/st2,Plexxi/st2,tonybaloney/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,nzlosh/st2,tonybaloney/st2,nzlosh/st2,peak6/st2,StackStorm/st2