Added variable data fied to Host detail page. Save/edit work -made changes in the Hosts controller for this. Still need to validate text blob is valid JSON.

lib/ui/static/js/forms/Hosts.js

@@ -32,16 +32,15 @@ angular.module('HostFormDefinition', [])
                 type: 'hidden',
                 includeOnEdit: true, 
                 includeOnAdd: true
+                },
+            variables: {
+                label: 'Variables',
+                type: 'textarea',
+                addRequired: false,
+                editRequird: false, 
+                rows: 10,
+                class: 'span12'
                 }
-            // inventory: {
-            //     label: 'Inventory',
-            //     type: 'lookup',
-            //     sourceModel: 'inventory',
-            //     sourceField: 'name',
-            //     addRequired: true,
-            //     editRequired: true,
-            //     ngClick: 'lookUpInventory()'
-            //     }
             },
 
         buttons: { //for now always generates <button> tags