Removed superfluous 'tracks' directory at the root of the repository.

Testing commits to github.

app/models/preference.rb

@@ -0,0 +1,30 @@
+class Preference < ActiveRecord::Base
+  belongs_to :user
+  composed_of :tz,
+              :class_name => 'TimeZone',
+              :mapping => %w(time_zone name)
+    
+  def self.due_styles
+    { :due_in_n_days => 0, :due_on => 1}
+  end
+           
+  def self.day_number_to_name_map
+    { 0 => "Sunday",
+		  1 => "Monday",
+			2 => "Tuesday",
+			3 => "Wednesday",
+			4 => "Thursday",
+			5 => "Friday",
+			6 => "Saturday"}
+  end
+  
+  def hide_completed_actions?
+    return show_number_completed == 0
+  end
+  
+  def parse_date(s)
+    return nil if s.blank?
+    Date.strptime(s, date_format)
+  end
+  
+end