Fix build release

Exporters/3ds Max/Max2Babylon/2015/Max2Babylon2015.csproj

@@ -34,10 +34,11 @@
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>C:\Program Files\Autodesk\3ds Max 2013\bin\assemblies\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
+    <DefineConstants>TRACE;MAX2015</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autodesk.Max, Version=17.0.630.0, Culture=neutral, processorArchitecture=MSIL">

Exporters/3ds Max/Max2Babylon/Max2Babylon.csproj

@@ -38,6 +38,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Autodesk.Max, Version=15.6.164.0, Culture=neutral, processorArchitecture=MSIL">