Ticket 48878 - pep8 fixes and fix rpm to build
    
    Bug Description:   As we are about to release, we should check and run
    pep8 on our code. There are also some other rpm fixes needed for
    distribution, so we should basically have a tidy up before we release
    the next version.
    
    Fix Description:
    
    * Fix all tests with pep8
    * Add makefile helper for pep8
    * exclude the sbin files as we aren't ready for them yet.
    
    https://fedorahosted.org/389/ticket/48878
    
    Author: wibrown
    
    Review by: spichugi, mbasti (Thanks!)