Apply Ryan Daigle's patch to fix editing contexts and projects. See #341. Does not resolve ajax loading issue mentioned in the ticket.

git-svn-id: http://www.rousette.org.uk/svn/tracks-repos/trunk@302 a4c988fc-2ded-0310-b66e-134b36920a42

tracks/app/controllers/context_controller.rb

@@ -109,6 +109,7 @@ class ContextController < ApplicationController
   # Edit the details of the context
   #
   def update
+    self.init
     check_user_set_context
     @context.attributes = params["context"]
     @context.name = deurlize(@context.name)

tracks/app/controllers/project_controller.rb

@@ -129,6 +129,7 @@ class ProjectController < ApplicationController
   # Edit the details of the project
   #
   def update
+    self.init
     check_user_set_project
     @project.attributes = params["project"]
     @project.name = deurlize(@project.name)