allow octet stream for preloaded test plan uploads (bug 1032776)
allow octet stream for preloaded test plan uploads (bug 1032776)

ingenioustechie/zamboni,luckylavish/zamboni,jasonthomas/zamboni,ayushagrawal288/zamboni,andymckay/zamboni,ngokevin/zamboni,tsl143/zamboni,washort/zamboni,ingenioustechie/zamboni,Hitechverma/zamboni,eviljeff/zamboni,diox/zamboni,mozilla/zamboni,tsl143/zamboni,washort/zamboni,luckylavish/zamboni,mozilla/zamboni,clouserw/zamboni,ddurst/zamboni,Jobava/zamboni,ayushagrawal288/zamboni,ayushagrawal288/zamboni,eviljeff/zamboni,mozilla/zamboni,jamesthechamp/zamboni,ngokevin/zamboni,ddurst/zamboni,Jobava/zamboni,elysium001/zamboni,Hitechverma/zamboni,luckylavish/zamboni,ddurst/zamboni,Hitechverma/zamboni,tsl143/zamboni,mstriemer/zamboni,shahbaz17/zamboni,kumar303/zamboni,eviljeff/zamboni,elysium001/zamboni,Hitechverma/zamboni,mstriemer/zamboni,diox/zamboni,mstriemer/zamboni,kumar303/zamboni,clouserw/zamboni,luckylavish/zamboni,shahbaz17/zamboni,jamesthechamp/zamboni,diox/zamboni,jamesthechamp/zamboni,ingenioustechie/zamboni,washort/zamboni,tsl143/zamboni,clouserw/zamboni,mudithkr/zamboni,eviljeff/zamboni,jasonthomas/zamboni,ddurst/zamboni,mudithkr/zamboni,clouserw/zamboni,andymckay/zamboni,mudithkr/zamboni,mozilla/zamboni,mudithkr/zamboni,andymckay/zamboni,ingenioustechie/zamboni,elysium001/zamboni,jamesthechamp/zamboni,shahbaz17/zamboni,kumar303/zamboni,ngokevin/zamboni,Jobava/zamboni,shahbaz17/zamboni,jasonthomas/zamboni,diox/zamboni,ayushagrawal288/zamboni,jasonthomas/zamboni,kumar303/zamboni,mstriemer/zamboni,Jobava/zamboni,washort/zamboni,elysium001/zamboni