Revert "Revert "Clean code and add 'name' in theme.rb""

This reverts commit 00813c9060.

app/models/design/theme.rb

@@ -1,3 +1,15 @@
 class Theme < Stylesheet
   embedded_in :design
+  field :name
+  
+  has_many :pages
+  
+  before_save :set_name
+  
+  protected
+  
+  def set_name
+    self.name = self.file_filename.split('.')[0]
+  end
+  
 end