Give better names to columns, add last name col

app/components/user_role_joins.rb

@@ -2,9 +2,15 @@ class UserRoleJoins < Netzke::Basepack::Grid
   def configure(c)
     super
     c.model = "UserRoleJoin"
+    c.header = false
     c.title = "User Roles"
-    c.columns = [ :user__first_name, :role__role, :created_at, :updated_at, :ends ]
-    #c.columns = [ :user__first_name]
+    c.columns = [
+      { :name => :user__first_name, :text => "First"},
+      { :name => :user__last_name, :text => "Last"},
+      { :name => :role__role, :text => "Role"},
+      :created_at,
+      :updated_at,
+      :ends ]
   end
 
   #override with nil to remove actions