restore reset_password rake task

lib/tasks/reset_password.rake

@@ -0,0 +1,24 @@
+namespace :tracks do
+  desc 'Replace the password of USER with a new one.'
+  task :password => :environment do
+    require "highline/import"
+    
+    user = User.find_by_login(ENV['USER'])
+    if user.nil?
+      puts "Sorry, we couldn't find user '#{ENV['USER']}'. To specify a different user, pass USER=username to this task."
+      exit 0
+    end 
+    
+    puts "Changing Tracks password for #{ENV['USER']}."
+    password = ask("New password: ") { |q| q.echo = false }
+    password_confirmation = ask('Retype new password: ') { |q| q.echo = false }
+    
+    begin
+      user.change_password(password, password_confirmation)
+    rescue ActiveRecord::RecordInvalid
+      puts "Sorry, we couldn't change #{ENV['USER']}'s password: "
+      user.errors.each_full { |msg| puts "- #{msg}\n" }
+    end
+  end
+end
+