Update HM eta param (bug fixed + added eta/pi0 test:pt -> 0 limit)
Update HM eta param (bug fixed + added eta/pi0 test:pt -> 0 limit)

AMechler/AliPhysics,adriansev/AliPhysics,pchrista/AliPhysics,adriansev/AliPhysics,pchrista/AliPhysics,AMechler/AliPhysics,alisw/AliPhysics,pchrista/AliPhysics,adriansev/AliPhysics,pchrista/AliPhysics,victor-gonzalez/AliPhysics,alisw/AliPhysics,adriansev/AliPhysics,alisw/AliPhysics,victor-gonzalez/AliPhysics,AMechler/AliPhysics,AMechler/AliPhysics,rbailhac/AliPhysics,victor-gonzalez/AliPhysics,AMechler/AliPhysics,rbailhac/AliPhysics,adriansev/AliPhysics,victor-gonzalez/AliPhysics,adriansev/AliPhysics,rbailhac/AliPhysics,alisw/AliPhysics,rbailhac/AliPhysics,rbailhac/AliPhysics,pchrista/AliPhysics,victor-gonzalez/AliPhysics,alisw/AliPhysics,adriansev/AliPhysics,rbailhac/AliPhysics,alisw/AliPhysics,victor-gonzalez/AliPhysics,victor-gonzalez/AliPhysics,AMechler/AliPhysics,rbailhac/AliPhysics,pchrista/AliPhysics,AMechler/AliPhysics,alisw/AliPhysics,pchrista/AliPhysics