Add basic testing infrastructure
    
    make test will now run some sanity tests to make sure basic installation
    procedures work in a sinthetic test environment.
    
    Adds:
    - custom httpd setup for tests
    - use profiles to driver ipsilon servers and clients installation
    - starts multiple httpd servers
    
    This way we can test interaction between IDP and SP servers
    
    Signed-off-by: Simo Sorce <simo@redhat.com>