libeditor is now just the base libraries; libcomposer covers the composer app. Installing both in packages that used to install the composer app. Mac checkin will follow separately. r=cmanske,jfrancis sr=sfraser,kin a=dbaron git-svn-id: svn://10.0.0.236/trunk@104608 18797224-902f-48f8-a5cc-f745e15eee43