Added permission field to delegation

Permission field is missing in delegation so it can't be set/modified.

It was added to delegation details facet and adder dialog.

The field is using checkboxes instead of multivalued textbox because it can have only two effective values: 'read' and 'write'.

https://fedorahosted.org/freeipa/ticket/2635

install/ui/aci.js

@@ -395,6 +395,12 @@ IPA.aci.delegation_entity = function(spec) {
                     label: IPA.messages.details.general,
                     fields: [
                         'aciname',
+                        {
+                            type: 'checkboxes',
+                            name: 'permissions',
+                            required: true,
+                            options: IPA.create_options(['read', 'write'])
+                        },
                         {
                             type: 'entity_select',
                             name: 'group',
@@ -420,6 +426,11 @@ IPA.aci.delegation_entity = function(spec) {
         adder_dialog({
             fields: [
                 'aciname',
+                {
+                    type: 'checkboxes',
+                    name: 'permissions',
+                    options: IPA.create_options(['read', 'write'])
+                },
                 {
                     type: 'entity_select',
                     name: 'group',