Allow each mod to have a default version

When a visitor arrives at the site for the first time, this will
ensure they have a certain set of mods on/off. Right now, that means
IC2-Classic is off by default, and everything else is on.

src/coffee/controllers/item_page_controller.coffee

@@ -113,8 +113,6 @@ module.exports = class ItemPageController extends PageController
             @$byline.fadeOut duration:Duration.fast
 
     _refreshDescription: ->
-        logger.debug "refreshing description"
-        logger.debug "item.description: #{@model?.item?.description}"
         description = @model.compileDescription()
         if description?
             @$descriptionPanel.html description
@@ -189,6 +187,4 @@ module.exports = class ItemPageController extends PageController
 
             @model.item = item
             item.fetch()
-            item.on Event.sync, =>
-                logger.debug "item loaded"
-                @refresh()
+            item.on Event.sync, => @refresh()

src/coffee/controllers/mod_pack_controller.coffee

@@ -6,7 +6,6 @@ All rights reserved.
 ###
 
 BaseController        = require './base_controller'
-{DefaultMods}         = require '../constants'
 {Duration}            = require '../constants'
 Mod                   = require '../models/mod'
 ModSelectorController = require './mod_selector_controller'