bug #4601: allow both old and new gzip mimetype
bug #4601: allow both old and new gzip mimetype

hsanjuan/one,OpenNebula/one,hsanjuan/one,unistra/one,baby-gnu/one,juanmont/one,abelCoronado93/one,baby-gnu/one,juanmont/one,juanmont/one,OpenNebula/one,atodorov-storpool/one,baby-gnu/one,abelCoronado93/one,hsanjuan/one,hsanjuan/one,alvarosimon/one,OpenNebula/one,goberle/one,goberle/one,OpenNebula/one,OpenNebula/one,hsanjuan/one,juanmont/one,ohamada/one,baby-gnu/one,abelCoronado93/one,atodorov-storpool/one,unistra/one,OpenNebula/one,abelCoronado93/one,OpenNebula/one,atodorov-storpool/one,juanmont/one,alvarosimon/one,alvarosimon/one,ohamada/one,alvarosimon/one,goberle/one,abelCoronado93/one,unistra/one,ohamada/one,ohamada/one,goberle/one,atodorov-storpool/one,goberle/one,ohamada/one,hsanjuan/one,atodorov-storpool/one,baby-gnu/one,unistra/one,goberle/one,alvarosimon/one,alvarosimon/one,alvarosimon/one,OpenNebula/one,juanmont/one,juanmont/one,atodorov-storpool/one,atodorov-storpool/one,goberle/one,ohamada/one,unistra/one,baby-gnu/one,abelCoronado93/one,baby-gnu/one,hsanjuan/one,abelCoronado93/one,unistra/one,alvarosimon/one,juanmont/one,hsanjuan/one,unistra/one,atodorov-storpool/one,abelCoronado93/one,goberle/one,atodorov-storpool/one,baby-gnu/one,juanmont/one,OpenNebula/one,ohamada/one,ohamada/one,unistra/one