Add addonID to Sandbox metadata.
Add addonID to Sandbox metadata.

--HG--
extra : rebase_source : 8f2fa2185a0e14c02d56d46c529a1c0b1b3a399c

moonshadow/dactyl,Kjwon15/dactyl,5digits/dactyl,5digits/dactyl,madand/pentadactyl-pm,invl/dactyl,airodactyl/dactyl,madand/pentadactyl-pm,5digits/dactyl,moonshadow/dactyl,madand/pentadactyl-pm,moonshadow/dactyl,invl/dactyl,Kjwon15/dactyl,moonshadow/dactyl,5digits/dactyl,madand/pentadactyl-pm,invl/dactyl,moonshadow/dactyl,nathyong/dactyl,nathyong/dactyl,airodactyl/dactyl,airodactyl/dactyl,nathyong/dactyl,madand/pentadactyl-pm,Kjwon15/dactyl,invl/dactyl,nathyong/dactyl,5digits/dactyl,nathyong/dactyl,airodactyl/dactyl,airodactyl/dactyl,Kjwon15/dactyl,airodactyl/dactyl,Kjwon15/dactyl,nathyong/dactyl,invl/dactyl,invl/dactyl,5digits/dactyl,madand/pentadactyl-pm,Kjwon15/dactyl,moonshadow/dactyl