Update package version and add package icon

Author: Ethan Hann

Diff for: src/InEngine.Core/InEngine.Core.csproj

@@ -9,11 +9,12 @@
     <Description>Plugin-based queuing and scheduling command server.</Description>
     <Copyright>Copyright © 2017 Ethan Hann</Copyright>
     <PackageId>InEngine.Core</PackageId>
-    <PackageVersion>3.4.0-beta2</PackageVersion>
+    <PackageVersion>3.4.0-beta3</PackageVersion>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <PackageTags>Integration Scheduler Queue Server Quartz.NET Redis</PackageTags>
     <PackageLicenseUrl>https://github.com/InEngine-NET/InEngine.NET/blob/master/LICENSE</PackageLicenseUrl>
     <PackageProjectUrl>https://github.com/InEngine-NET/InEngine.NET</PackageProjectUrl>
+	<PackageIconUrl>http://inengine.net/images/inengine-logo-32.png</PackageIconUrl>
     <Product>InEngine.NET</Product>
   </PropertyGroup>
   <ItemGroup>

Diff for: src/InEngine/InEngine.csproj

@@ -11,11 +11,12 @@
     <Description>Plugin-based queuing and scheduling command server.</Description>
     <Copyright>Copyright © 2017 Ethan Hann</Copyright>
 	<Product>InEngine.NET</Product>
-	<PackageVersion>3.4.0-beta2</PackageVersion>
+	<PackageVersion>3.4.0-beta3</PackageVersion>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
 	<PackageLicenseUrl>https://github.com/InEngine-NET/InEngine.NET/blob/master/LICENSE</PackageLicenseUrl>
     <PackageProjectUrl>https://github.com/InEngine-NET/InEngine.NET</PackageProjectUrl>
+	<PackageIconUrl>http://inengine.net/images/inengine-logo-32.png</PackageIconUrl>
     <PackageTags>Integration Scheduler Queue Server Quartz.NET Redis</PackageTags>
   </PropertyGroup>
   <ItemGroup>