Update build script

mod/build

@@ -1,13 +1,10 @@
 #/bin/bash
 
-msbuild=${msbuild:-/Library/Frameworks/Mono.framework/Versions/6.12.0/bin/msbuild}
-
 ROOT=$( cd "$(dirname "$0")" ; pwd -P )
 pushd $ROOT
 
 # Do the build (need to use mono)
-# $msbuild
-"$msbuild" -p:Configuration=Release
+dotnet build -c Release
 
 set -x
 rm -rf dist