Fix bug on removing null item from filter summary

Author: ithielnor

Build/CommonAssemblyInfo.cs

@@ -15,6 +15,6 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("3.3.0")]
-[assembly: AssemblyFileVersion("3.3.0")]
+[assembly: AssemblyVersion("3.3.1")]
+[assembly: AssemblyFileVersion("3.3.1")]
 //[assembly: AssemblyInformationalVersion("2.5-filters")]

Build/Griddly.Core.nuspec

@@ -5,10 +5,10 @@
     <id>Griddly.Core</id>
     <version></version>
     <authors>Chris Hynes, Joel Potter</authors>
-    <!--<licenseUrl></licenseUrl>-->
     <projectUrl>https://github.com/programcsharp/griddly</projectUrl>
     <iconUrl>https://raw.githubusercontent.com/programcsharp/griddly/master/Griddly/Content/griddly-32.png</iconUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <license type="expression">MIT</license>
     <description>Pagable sortable MVC enabled grid (core files only)</description>
     <!--<summary></summary>-->
     <language>en-US</language>

Build/Griddly.nuspec

@@ -5,13 +5,11 @@
     <id>Griddly</id>
     <version></version>
     <authors>Chris Hynes, Joel Potter</authors>
-    <!--<licenseUrl></licenseUrl>-->
     <projectUrl>http://griddly.com</projectUrl>
     <iconUrl>https://raw.githubusercontent.com/programcsharp/griddly/master/Griddly/Content/griddly-32.png</iconUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <!--<license type="expression">MIT</license>-->
+    <license type="expression">MIT</license>
     <description>Pagable, sortable, MVC enabled grid</description>
-    <!--<summary></summary>-->
     <language>en-US</language>
     <dependencies> 
       <group>

Griddly/Scripts/griddly.js

@@ -362,7 +362,7 @@
         }
         else
         {
-            if (typeof value === typeof undefined && input.is("[multiple]"))
+            if ((value === null || typeof value === typeof undefined) && input.is("[multiple]"))
                 input.find("option:selected").prop("selected", false);
             else
                 input.val([].concat(value));