updating build.sh to use older version of FAKE

unfortunately FAKE 3 broke fsiargs
fsprojects/FAKE#500

build.sh

@@ -1,8 +1,9 @@
 #!/bin/bash
-export MONO=mono
+
+mono .nuget/NuGet.exe install Nuget.Core -OutputDirectory packages -ExcludeVersion 
 
 if [ ! -e packages/FAKE/tools/FAKE.exe ]; then 
-  mono .nuget/NuGet.exe install FAKE -OutputDirectory packages -ExcludeVersion
+  mono .nuget/NuGet.exe install FAKE -OutputDirectory packages -ExcludeVersion -version "2.18.2"
 fi
 if [ ! -e packages/SourceLink.Fake/Tools/Fake.fsx ]; then
   mono .nuget/NuGet.exe install SourceLink.Fake -OutputDirectory packages -ExcludeVersion

build.template

@@ -2,14 +2,19 @@
 // FAKE build script 
 // --------------------------------------------------------------------------------------
 
+#r @"packages/Nuget.Core/lib/net40-Client/NuGet.Core.dll"
 #r @"packages/FAKE/tools/FakeLib.dll"
-#load "packages/SourceLink.Fake/Tools/Fake.fsx"
 open Fake
 open Fake.Git
 open Fake.AssemblyInfoFile
 open Fake.ReleaseNotesHelper
 open System
+#if MONO
+#else
+#load "packages/SourceLink.Fake/Tools/Fake.fsx"
 open SourceLink
+#endif
+
 
 // --------------------------------------------------------------------------------------
 // START TODO: Provide project-specific details below
@@ -109,6 +114,8 @@ Target "RunTests" (fun _ ->
             OutputFile = "TestResults.xml" })
 )
 
+#if MONO
+#else
 // --------------------------------------------------------------------------------------
 // SourceLink allows Source Indexing on the PDB generated by the compiler, this allows
 // the ability to step through the source code of external libraies https://github.com/ctaggart/SourceLink
@@ -127,6 +134,7 @@ Target "SourceLink" (fun _ ->
         Pdbstr.exec proj.OutputFilePdb proj.OutputFilePdbSrcSrv
     )
 )
+#endif
 
 // --------------------------------------------------------------------------------------
 // Build a NuGet package
@@ -188,7 +196,10 @@ Target "All" DoNothing
   ==> "CleanDocs"
   ==> "GenerateDocs"
   ==> "ReleaseDocs"
+#if MONO
+#else
   =?> ("SourceLink", Pdbstr.tryFind().IsSome )
+#endif
   ==> "NuGet"
   ==> "Release"