new logo and updated nuspecs to point to it

Author: jason-roberts

TestStack.ConventionTests.Autofac/TestStack.ConventionTests.Autofac.nuspec

@@ -12,6 +12,7 @@
     <summary>A selection of pre-packaged conventions to validate autofac</summary>
     <projectUrl>https://github.com/TestStack/ConventionTests</projectUrl>
     <licenseUrl>https://github.com/TestStack/ConventionTests/blob/master/license.txt</licenseUrl>
+    <iconUrl>https://raw.github.com/TestStack/ConventionTests/master/logo.png</iconUrl>
     <releaseNotes>https://github.com/TestStack/ConventionTests/releases</releaseNotes>
     <dependencies>
       <dependency id="TestStack.ConventionTests" />

TestStack.ConventionTests/TestStack.ConventionTests.nuspec

@@ -12,6 +12,7 @@
     <summary>Simple library offering a simple way to test conventions.</summary>
     <projectUrl>https://github.com/TestStack/ConventionTests</projectUrl>
     <licenseUrl>https://github.com/TestStack/ConventionTests/blob/master/license.txt</licenseUrl>
+    <iconUrl>https://raw.github.com/TestStack/ConventionTests/master/logo.png</iconUrl>
     <releaseNotes>https://github.com/TestStack/ConventionTests/releases</releaseNotes>
     <dependencies>
       <dependency id="Mono.Cecil" />