- added limit for letsencrypt and directive snippets selector to client limits
- hide ssl tab if letsencrypt is selected

- Added HHVM to "Default PHP Handler" field (server configuration).
- Fixed "Unable to load the server configuration from database." error when running server.sh.
- Fixed Javascript (accordions weren't working anymore, directive snippets and other placeholders couldn't be added anymore).

- Merged language files

- Added missing option in centos dovecot.conf file

- Updated version number to 3.0.5.4rc1

- Added email message templates.

- Added section toggle for client limits

- Resellers can use templates for their clients.

- Added fields to client, reseller and website to show when a record was added and by which user