Code review comment for lp:~marcobiscaro2112/unity/custom-bg

Well obviously the above diff worked just fine in 5.12/12.04 to fix both bugs. Also, at least here with a minor change to the BGHash.cpp section using todays unity trunk thru r 2404, a custom color is maintained thru opening Dash, log outs/in's, ect. (#000000 is still good also
hopefully whatever you all do is provided to both 12.04 with whatever unity is going to be used & 12.10