Setup nuget closes #4

Author: FlorianRappl

Nuget/AngleSharp.Io.nuspec

@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<package>
+  <metadata>
+    <id>AngleSharp.Io</id>
+    <version>0.0.1</version>
+    <authors>AngleSharp</authors>
+    <owners>Florian Rappl</owners>
+    <licenseUrl>https://github.com/AngleSharp/AngleSharp.Io/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://anglesharp.github.io</projectUrl>
+    <iconUrl>https://raw.github.com/AngleSharp/AngleSharp.Io/master/logo.png</iconUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>Providers additional requesters and IO helpers for AngleSharp.</description>
+    <releaseNotes>For all changes see: https://github.com/AngleSharp/AngleSharp/wiki/ChangeLog</releaseNotes>
+    <copyright>Copyright 2015, AngleSharp</copyright>
+    <tags>html html5 css css3 dom requester http https io filesystem storage httpclient cache</tags>
+    <dependencies> 
+      <dependency id="AngleSharp" version="0.9.2" />
+    </dependencies>
+  </metadata>
+</package>

Package.ps1

@@ -0,0 +1,14 @@
+$dest = "Nuget\lib\net45"
+$spec = "Nuget\AngleSharp.Io.nuspec"
+New-Item $dest -type directory -Force
+Copy-Item "AngleSharp.Io\bin\Release\AngleSharp.Io.dll" $dest
+Copy-Item "AngleSharp.Io\bin\Release\AngleSharp.Io.xml" $dest
+$file = $dest + "\AngleSharp.Io.dll"
+$ver = (Get-Item $file).VersionInfo.FileVersion
+$file = "Nuget\AngleSharp.Io." + $ver + ".nupkg"
+$repl = '<version>' + $ver + '</version>'
+(Get-Content $spec) | 
+    Foreach-Object { $_ -replace "<version>([0-9\.]+)</version>", $repl } | 
+    Set-Content $spec
+nuget pack $spec -OutputDirectory "Nuget"
+nuget push $file