* enable other modules * change port type * remove maxDiff from test class * update port comment * add -f to a2dismod
* Ensure that mod_alias is enabled * Make sure we listen to port http01_port
* Add a simple version of HTTP01 * remove cert from chall name * make directory work on 2.2 * cleanup challenges when finished * import shutil * fixup perform and cleanup tests * Add tests for http_01.py