ILMerge -> ILRepack, closes #39

Should also work on Linux/OS X now, but I'm too lazy to check

ArchiSteamFarm/ArchiSteamFarm.csproj

@@ -147,7 +147,15 @@
     mkdir "$(TargetDir)out" "$(TargetDir)out\config"
     copy "$(TargetDir)config\example.xml" "$(TargetDir)out\config"
     copy "$(TargetDir)config\minimal.xml" "$(TargetDir)out\config"
-    "$(SolutionDir)tools\ILMerge.exe" /ndebug /internalize /out:"$(TargetDir)out\ASF.exe" "$(TargetDir)$(TargetName).exe" "$(TargetDir)*.dll" /target:exe /targetplatform:v4,"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2" /wildcards
+    "$(SolutionDir)tools\ILRepack.exe" /ndebug /internalize /parallel /targetplatform:v4 /wildcards /out:"$(TargetDir)out\ASF.exe" "$(TargetDir)$(TargetName).exe" "$(TargetDir)*.dll"
+    del "$(TargetDir)out\ASF.exe.config"
+)</PostBuildEvent>
+    <PostBuildEvent Condition=" '$(OS)' == 'Unix' ">if $(ConfigurationName) == Release (
+    mkdir "$(TargetDir)out" "$(TargetDir)out/config"
+    cp "$(TargetDir)config/example.xml" "$(TargetDir)out/config"
+    cp "$(TargetDir)config/minimal.xml" "$(TargetDir)out/config"
+    mono "$(SolutionDir)tools/ILRepack.exe" /ndebug /internalize /parallel /targetplatform:v4 /wildcards /out:"$(TargetDir)out/ASF.exe" "$(TargetDir)$(TargetName).exe" "$(TargetDir)*.dll"
+    rm "$(TargetDir)out/ASF.exe"
 )</PostBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.