Created mailer
Added missing requirement
Merge pull request #1 from hrevert/mailer

Created mailer
Renamed method, 'generateRequestKey' to 'generateToken'
Fixed typo
Used Mtmail to send mail
Fixed tests
Added installation instruction for configuring MtMail
Merge pull request #2 from hrevert/mtmail

Used Mtmail to send mail
Update Module.php
Merge branch 'master' of https://github.com/hrevert/HtUserRegistration into hrevert-master

Conflicts:
	src/Service/UserRegistrationService.php
Merge branch 'hrevert-master'