MONDRIAN: Fix bug 1442110: If Query.getMdxHierarchiesOnAxis() knows what dimension an expression belongs to but not which hierarchy, it now returns the default hierarchy of the dimension rather than null (which was confusing JPivot).
MONDRIAN: Fix bug 1442110: If Query.getMdxHierarchiesOnAxis() knows what dimension an expression belongs to but not which hierarchy, it now returns the default hierarchy of the dimension rather than null (which was confusing JPivot).

[git-p4: depot-paths = "//open/mondrian/": change = 5729]

ivanpogodin/mondrian,rfellows/mondrian,openedbox/mondrian,openedbox/mondrian,cocosli/mondrian,mustangore/mondrian,AvinashPD/mondrian,stiberger/mondrian,OSBI/mondrian,bmorrise/mondrian,pedrofvteixeira/mondrian,preisanalytics/mondrian,citycloud-bigdata/mondrian,ivanpogodin/mondrian,Seiferxx/mondrian,lgrill-pentaho/mondrian,ivanpogodin/mondrian,bmorrise/mondrian,rfellows/mondrian,cesarmarinhorj/mondrian,julianhyde/mondrian,truvenganong/mondrian,mustangore/mondrian,preisanalytics/mondrian,truvenganong/mondrian,sayanh/mondrian,wetet2/mondrian,cesarmarinhorj/mondrian,dkincade/mondrian,syncron/mondrian,mdamour1976/mondrian,sayanh/mondrian,julianhyde/mondrian,Seiferxx/mondrian,stiberger/mondrian,cocosli/mondrian,nextelBIS/mondrian,syncron/mondrian,mustangore/mondrian,pentaho/mondrian,AvinashPD/mondrian,pentaho/mondrian,lgrill-pentaho/mondrian,AvinashPD/mondrian,stiberger/mondrian,wetet2/mondrian,syncron/mondrian,dkincade/mondrian,OSBI/mondrian,cocosli/mondrian,dkincade/mondrian,wetet2/mondrian,bmorrise/mondrian,pedrofvteixeira/mondrian,mdamour1976/mondrian,OSBI/mondrian,Seiferxx/mondrian,sayanh/mondrian,openedbox/mondrian,citycloud-bigdata/mondrian,lgrill-pentaho/mondrian,truvenganong/mondrian,preisanalytics/mondrian,pedrofvteixeira/mondrian,pentaho/mondrian,nextelBIS/mondrian,mdamour1976/mondrian,cesarmarinhorj/mondrian,citycloud-bigdata/mondrian,nextelBIS/mondrian