Fix minor bugs in appconverter-worker.rb
Fix minor bugs in appconverter-worker.rb

woshizmxin/addon-appmarket,woshizmxin/addon-appmarket,woshizmxin/addon-appmarket,OpenNebula/addon-appmarket,OpenNebula/addon-appmarket,OpenNebula/addon-appmarket,woshizmxin/addon-appmarket,OpenNebula/addon-appmarket