Bundle install during reconfigure; DRY
Run 'bundle install' and 'npm install' in only one place in the Makefile, and reorganize so that 'gdk update' and 'gdk reconfigure' run 'bundle install' + 'npm install'.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Run 'bundle install' and 'npm install' in only one place in the Makefile, and reorganize so that 'gdk update' and 'gdk reconfigure' run 'bundle install' + 'npm install'.