pom.xml: updates for release 0.19.16
Catalog api cleanup and enhancements for mutli-versions
Fix missing fields in invoice items and remove constraint for generating stricly positive external charges
+0.19.16
+ Catalog api cleanup and enhancements for mutli-versions
+ Fix missing fields in invoice items and remove constraint for generating stricly positive external charges
+
0.19.15
Fix issue in usage billing (DETAIL mode)
Catalog endpoints enhancements
