Different import --offline command behavior
    
    `*pkg import --offline` didn't update 'source' and '.gitignore' files.
    Modified incorrect output about uploaded sources. Offline mode now does
    everything but uploading sources into lookaside cache.
    
    JIRA: COMPOSE-3558
    Fixes: #445
    Resolves: rhbz#1175262
    
    Signed-off-by: Ondrej Nosek <onosek@redhat.com>