Update release notes section in nuspec's

Author: kevinkuszyk

src/FluentAssertions.Mvc3/FluentAssertions.Mvc3.nuspec

@@ -10,10 +10,7 @@
     <projectUrl>https://github.com/CaseyBurns/FluentAssertions.MVC</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>FluentAssertions MVC is a set of MVC focused assertions and helper extensions to the excellent FluentAssertions library.</description>
-    <releaseNotes>
-- New: Updated to support FluentAssertions 3.0.90.
-- New: Updated .net 4 projects to framework version 4.0.3.
-    </releaseNotes>
+    <releaseNotes>See https://github.com/CaseyBurns/FluentAssertions.MVC/releases </releaseNotes>
     <copyright>Copyright 2014</copyright>
     <tags>TDD, TDD, Fluent, Mvc, AspNetMvc</tags>
    </metadata>

src/FluentAssertions.Mvc4/FluentAssertions.Mvc4.nuspec

@@ -10,10 +10,7 @@
     <projectUrl>https://github.com/CaseyBurns/FluentAssertions.MVC</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>FluentAssertions MVC is a set of MVC focused assertions and helper extensions to the excellent FluentAssertions library.</description>
-    <releaseNotes>
-- New: Updated to support FluentAssertions 3.0.90.
-- New: Updated .net 4 projects to framework version 4.0.3.
-    </releaseNotes>
+    <releaseNotes>See https://github.com/CaseyBurns/FluentAssertions.MVC/releases </releaseNotes>
     <copyright>Copyright 2014</copyright>
     <tags>TDD, TDD, Fluent, Mvc, AspNetMvc</tags>
    </metadata>

src/FluentAssertions.Mvc5/FluentAssertions.Mvc5.nuspec

@@ -10,10 +10,7 @@
     <projectUrl>https://github.com/CaseyBurns/FluentAssertions.MVC</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>FluentAssertions MVC is a set of MVC focused assertions and helper extensions to the excellent FluentAssertions library.</description>
-    <releaseNotes>
-- New: Updated to support FluentAssertions 3.0.90.
-- New: Updated .net 4 projects to framework version 4.0.3.
-    </releaseNotes>
+    <releaseNotes>See https://github.com/CaseyBurns/FluentAssertions.MVC/releases </releaseNotes>
     <copyright>Copyright 2014</copyright>
     <tags>TDD, TDD, Fluent, Mvc, AspNetMvc</tags>
    </metadata>