Fix build break from last commit 9c65207.  Mono 2.4 lacks string.join(string, List<string>), or some auto casting is missing
Fix build break from last commit 9c65207.  Mono 2.4 lacks string.join(string, List<string>), or some auto casting is missing

bravelittlescientist/opensim-performance,bravelittlescientist/opensim-performance,bravelittlescientist/opensim-performance,bravelittlescientist/opensim-performance,bravelittlescientist/opensim-performance,bravelittlescientist/opensim-performance