load: set environment variables:
    VBLR_PROJECT
    VBLR_UPDATE
    VBLR_BATCH
    VBLR_JOB
    VBLR_LOAD_TYPE
prep: set environment (VBLR_PROJECT, etc.)
Set load type correctly when autoloading from a kit
add_from_kits:
    Make sure we actually opened the kit
    Don't carry the load type over from one file to the next