buildbot master now can do full cleans by setting property fullclean to yes in the web UI
buildbot master now can do full cleans by setting property fullclean to yes in the web UI

Signed-off-by: Ian Bell <6f1c5b737f3c5cff42a9b8f8dcfce305d97fd07b@gmail.com>

henningjp/CoolProp,CoolProp/CoolProp,DANA-Laboratory/CoolProp,henningjp/CoolProp,DANA-Laboratory/CoolProp,CoolProp/CoolProp,JonWel/CoolProp,JonWel/CoolProp,CoolProp/CoolProp,DANA-Laboratory/CoolProp,dcprojects/CoolProp,dcprojects/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,dcprojects/CoolProp,CoolProp/CoolProp,dcprojects/CoolProp,dcprojects/CoolProp,henningjp/CoolProp,DANA-Laboratory/CoolProp,DANA-Laboratory/CoolProp,dcprojects/CoolProp,DANA-Laboratory/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,JonWel/CoolProp,dcprojects/CoolProp,henningjp/CoolProp,henningjp/CoolProp,JonWel/CoolProp,JonWel/CoolProp,JonWel/CoolProp,henningjp/CoolProp,JonWel/CoolProp,DANA-Laboratory/CoolProp,henningjp/CoolProp