Merge branch 'master' into 'master'

Update galleries_controller.rb

solve the upload problem for production mode

See merge request !4

app/controllers/admin/galleries_controller.rb

@@ -368,6 +368,7 @@ class Admin::GalleriesController < OrbitAdminController
   end
   def start_upload_process
     @@upload_success = true
+    sleep 0.01
     render :json => {}.to_json
   end
   def init_upload
@@ -380,6 +381,7 @@ class Admin::GalleriesController < OrbitAdminController
     render :json => {}.to_json
   end
   def upload_image
+    sleep 0.01
     if !(@@image_unprocessed.nil?)
         album = Album.find(params[:album_id])
         files = params['files']