adding support to get upstream jobs and builds (direct upstream jobs or master jobs)
adding support to get upstream jobs and builds (direct upstream jobs or master jobs)

aerickson/jenkinsapi,salimfadhley/jenkinsapi,zaro0508/jenkinsapi,salimfadhley/jenkinsapi,domenkozar/jenkinsapi,zaro0508/jenkinsapi,JohnLZeller/jenkinsapi,ramonvanalteren/jenkinsapi,JohnLZeller/jenkinsapi,zaro0508/jenkinsapi,jduan/jenkinsapi,imsardine/jenkinsapi,domenkozar/jenkinsapi,mistermocha/jenkinsapi,mistermocha/jenkinsapi,imsardine/jenkinsapi,EwoutVDC/jenkinsapi,aerickson/jenkinsapi,jduan/jenkinsapi,JohnLZeller/jenkinsapi,mistermocha/jenkinsapi,imsardine/jenkinsapi