Waypoint commit; install file not working

aws_migrate_file_managed_update() fails with the following:

array_keys() expects parameter 1 to be array, null given aws_migrate.install:41                                                                                                                                            [warning]
Invalid argument supplied for foreach() aws_migrate.install:42

aws_migrate_field_config_update() fails by updating *all* fields, not just image and file fileds

Other than that, great work. Good job, good effort.