closes #163 and fixes another association problem

Author: catmando

ruby/hyper-model/lib/reactive_record/active_record/associations.rb

@@ -182,7 +182,8 @@ def find_inverse(model)  # private
 
       def klass(model = nil)
         @klass ||= Object.const_get(@klass_name) if @klass_name
-        if @klass && model && !(model.class <= @klass)
+        if @klass && model && !(model.class <= @klass || @klass <= model.class)
+          # TODO: added || @klass <= model.class can both cases really happen I guess so
           raise "internal error: provided model #{model} is not subclass of #{@klass}"
         end
         raise 'no model supplied for polymorphic relationship' unless @klass || model

ruby/hyperstack-config/lib/hyperstack-hotloader-config.js.erb

@@ -3,5 +3,5 @@ if ((typeof(window) !== 'undefined') && (window.Hyperstack==undefined || window.
 }
 //if (typeof(Hyperstack) === 'undefined') { Hyperstack = {} }
 Hyperstack.hotloader.port = <%= Hyperstack.hotloader_port %>
-Hyperstack.hotloader.ping = <%= !!Hyperstack.hotloader_ping %>
+Hyperstack.hotloader.ping = <%= Hyperstack.hotloader_ping ? Hyperstack.hotloader_ping : false %>
 Hyperstack.hotloader.ignore_callback_mapping = <%= !(!Hyperstack.hotloader_ignore_callback_mapping && Rails.configuration.assets.debug) %>

ruby/hyperstack-config/lib/hyperstack/hotloader/short_cut.js

@@ -4,6 +4,6 @@ if (typeof window !== 'undefined') {
       Opal.Hyperstack.$const_get('Hotloader').$listen(port || 25222, ping || Opal.nil)
     }
   }
-} else {
+} /* else {
   throw 'Attempt to run hotloader during prerendering - make sure you import with the `client_only: true` option'
-}
+} */