Fix the summary transcript view
Fix error in cache system, when the enduser changed the language
Fix details to the P2P view
Fix p2p view. Now you don't send two p2p using two tabs of the browser
Fix 500 error when an user access to the teacher admin without to be authentication
Now the clone_activity_user_course_task send in the current language the email
Now the p2p score is rounded (with 2 decimals)
Add message to contact form
Fix a little detal to transcript view
Spanish translations
Merge branch 'master' into accesibility

Conflicts:
	moocng/courses/templates/courses/transcript.html
	moocng/locale/es/LC_MESSAGES/django.mo
	moocng/locale/es/LC_MESSAGES/django.po