Fixes wrong query errors (fixes #4231, #4240)



See merge request !459

Fix xfs_quota

Fix xfs_quota:
 - Replace "-g" with "-u" because username is is used
 - Set the path for the timer command

See merge request !458

RewriteCond: bad flag delimiters

Config error - Apache 2.2 complain "RewriteCond: bad flag delimiters" because the template renders bogus rules without proper new lines like:

` RewriteCond %{REQUEST_URI} !^/\.well-known/acme-challenge/    RewriteCond %{REQUEST_URI} !^/webdav/`

` RewriteCond %{REQUEST_URI} !^/\.well-known/acme-challenge/    RewriteRule ^(.*)$ http://example.com$1 [R=301,NE,L]`

See merge request !456

truncate sys_session during update



See merge request !455

fixed placeholder



See merge request !454

The cipher suites are only set now for ISPConfig's own vhost, the intermediate security profile from Mozilla is used here.

Merged language files.

use php filter_var database remote-ip (#4215)



See merge request !453

Added fields user_config and user_type to the ftp_user table.

fixe typo



See merge request !452

Stable 3.1

Add checkbox to main config for show/hide backup tab in mail account details.

See merge request !451