Add migration system plugin into the script.  Reformat logging, ensure appinfos are migrated only when they can be.
Add migration system plugin into the script.  Reformat logging, ensure appinfos are migrated only when they can be.

mdunker/usergrid,mdunker/usergrid,mdunker/usergrid,mdunker/usergrid,mdunker/usergrid,mdunker/usergrid,mdunker/usergrid,mdunker/usergrid