Changed wording in emails to remove any 6.002x or MITx reference.

common/djangoapps/student/views.py

@@ -233,7 +233,6 @@ def create_account(request, post_override=None):
     # TODO (vshnayder): the LMS should probably allow signups without a particular course too
     d = {'name': post_vars['name'],
          'key': r.activation_key,
-         'course_title': getattr(settings, 'COURSE_TITLE', ''),
          }
 
     subject = render_to_string('emails/activation_email_subject.txt', d)

lms/templates/emails/activation_email.txt

-Someone, hopefully you, signed up for an account for edX's on-line
-offering of "${ course_title}" using this email address. If it was
-you, and you'd like to activate and use your account, copy and paste
-this address into your web browser's address bar:
+Someone, hopefully you, signed up for an edX account using this 
+email address. If it was you, and you'd like to activate and 
+use your account, copy and paste this address into your web
+browser's address bar:
 
 % if is_secure:
   https://${ site }/activate/${ key }

lms/templates/emails/confirm_email_change.txt

 <%! from django.core.urlresolvers import reverse %>
-This is to confirm that you changed the e-mail associated with MITx
+This is to confirm that you changed the e-mail associated with edX
 from ${old_email} to ${new_email}. If you did not make this request,
 please contact the course staff immediately. Contact information is
 listed at:

lms/templates/emails/email_change.txt

-We received a request to change the e-mail associated with your MITx
+We received a request to change the e-mail associated with your edX
 account from ${old_email} to ${new_email}. If this is correct, please
 confirm your new e-mail address by visiting:
 
@@ -10,4 +10,4 @@ confirm your new e-mail address by visiting:
 
 If you didn't request this, you don't need to do anything; you won't
 receive any more email from us. Please do not reply to this e-mail; if
-you require assistance, check the help section of the MITx web site.
+you require assistance, check the help section of the edX web site.

lms/templates/emails/email_change_subject.txt

-Request to change MITx account e-mail
+Request to change edX account e-mail