Comment changes made. Programmed by Michael.

This commit just contains comment changes, with one deleted and one changed so
it is spelt correctly. (Feature #95)
Changed Go Back Button. Programmed by Michael.

The Go Back button on the failed confirmation message now just drops the user back on the confirmation page,
instead of taking them back to the homepage. (Feature #95)
Cofirmation that information has been pushed to database clears session. Paired by Richard and Michael.

Successful confirmation that the user's information has been sent to the database now properly clears
the session of the user's information, which means they can create as many patterns as they like.
(Feature #95)