oslo-incubator: gate on py33

Change-Id: Ia38b9ad2d6b2180459653017b308841eb78bda89
Remove depreciated htmlify-screen-log

os-loganalyze has replaced htmlify-screen-log which is no longer used

Change-Id: I5656bcd086669febbb82e438ced15ee92dd973b1
Merge "Remove depreciated htmlify-screen-log"
Merge "oslo-incubator: gate on py33"