fetch ICSharpCode.SharpZipLib from nuget

.gitignore

@@ -23,6 +23,7 @@ mods/*/*.mdb
 /*.mdb
 /*.exe
 thirdparty/StyleCop*
+thirdparty/ICSharpCode.SharpZipLib.dll*
 
 # backup files by various editors
 *~

thirdparty/README

@@ -10,11 +10,6 @@ FuzzyLogicLibrary.dll
 	Version 1.2.0
 	GPL v2.0 license
 
-ICSharpCode.SharpZipLib.dll
-	http://icsharpcode.github.io/SharpZipLib/
-	Version 0.86
-	GPL 2.0 with GNU Classpath exception
-
 MaxMind.Db.dll
 MaxMind.GeoIP2.dll
 Newtonsoft.Json.dll

thirdparty/fetch-thirdparty-deps.ps1

@@ -3,6 +3,7 @@ if (!(Test-Path "nuget.exe"))
 	echo "Fetching NuGet."
 	Invoke-WebRequest "http://nuget.org/nuget.exe" -OutFile "nuget.exe"
 }
+
 if (!(Test-Path "StyleCop.dll"))
 {
 	echo "Fetching StyleCop files from NuGet."
@@ -10,3 +11,11 @@ if (!(Test-Path "StyleCop.dll"))
 	cp StyleCop.MSBuild.4.7.49.0/tools/StyleCop*.dll .
 	rmdir StyleCop.MSBuild.4.7.49.0 -Recurse
 }
+
+if (!(Test-Path "ICSharpCode.SharpZipLib.dll"))
+{
+	echo "Fetching ICSharpCode.SharpZipLib from NuGet."
+	./nuget.exe install SharpZipLib -Version 0.86.0
+	cp SharpZipLib.0.86.0/lib/20/ICSharpCode.SharpZipLib.dll .
+	rmdir SharpZipLib.0.86.0 -Recurse
+}

thirdparty/fetch-thirdparty-deps.sh

@@ -4,4 +4,11 @@ if [ ! -f StyleCop.dll ]; then
 	nuget install StyleCop.MSBuild -Version 4.7.49.0
 	cp ./StyleCop.MSBuild.4.7.49.0/tools/StyleCop*.dll .
 	rm -rf StyleCop.MSBuild.4.7.49.0
+fi
+
+if [ ! -f ICSharpCode.SharpZipLib.dll ]; then
+	echo "Fetching ICSharpCode.SharpZipLib from nuget"
+	nuget install SharpZipLib -Version 0.86.0
+	cp ./SharpZipLib.0.86.0/lib/20/ICSharpCode.SharpZipLib.dll .
+	rm -rf SharpZipLib.0.86.0
 fi