Improved Installer with SemVer parsing and warnings

Author: TwoTenPvP

MLAPI-Editor/MLAPI-Editor.csproj

@@ -49,6 +49,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <Reference Include="System" />
     <Reference Include="UnityEditor, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\Libraries\Unity\UnityEditor.dll</HintPath>