Minor changes
Merge branch 'master' of github.com:nemanja-tomic/Konteh

Conflicts:
	KontehChallenge/success.php
Uncommented.
Added youwin.js.
Implemented check if activation link has already been visited.
Changed email sender for feedback mail.
Added database name for konteh_user.
Merge branch 'master' of github.com:nemanja-tomic/Konteh

Conflicts:
	KontehChallenge/js/youwin.js