Update Package.php
Update Package.php

Attribute keys were not displaying on the uninstall screen. There wasn't an error, they just didn't show.

Former-commit-id: 3ee6185f3125b51ef956d38e7beeb706999e0e0c
biplobice/concrete5,rikzuiderlicht/concrete5,biplobice/concrete5,rikzuiderlicht/concrete5,deek87/concrete5,hissy/concrete5,mlocati/concrete5,deek87/concrete5,concrete5/concrete5,hissy/concrete5,olsgreen/concrete5,jaromirdalecky/concrete5,a3020/concrete5,a3020/concrete5,haeflimi/concrete5,KorvinSzanto/concrete5,mainio/concrete5,acliss19xx/concrete5,KorvinSzanto/concrete5,rikzuiderlicht/concrete5,KorvinSzanto/concrete5,deek87/concrete5,jaromirdalecky/concrete5,jaromirdalecky/concrete5,mainio/concrete5,mlocati/concrete5,olsgreen/concrete5,hissy/concrete5,deek87/concrete5,concrete5/concrete5,biplobice/concrete5,triplei/concrete5-8,triplei/concrete5-8,mainio/concrete5,olsgreen/concrete5,biplobice/concrete5,jaromirdalecky/concrete5,mlocati/concrete5,concrete5/concrete5,haeflimi/concrete5,concrete5/concrete5,acliss19xx/concrete5,haeflimi/concrete5,mlocati/concrete5,hissy/concrete5,MrKarlDilkington/concrete5,MrKarlDilkington/concrete5,haeflimi/concrete5,acliss19xx/concrete5,triplei/concrete5-8,MrKarlDilkington/concrete5