added support for sql flags

this adds support for MySQL SSL encryption between servers in multiserver setup

See merge request !573

RewriteRule ^ %{REQUEST_URI} is faster than ^(.*)$ $1



See merge request !562

Fix #4601 Rewrite HTTP to HTTPS subdomain problem

This resolve:
On fast-cgi and php-fpm (maybe the others configurations too) subdomain redirection from http to https.

I opened a bug on: ispconfig/ispconfig3#4601

See merge request !565

cancel to right location dns records

when one is going to add a dns record and pushes the cancel button, it returns to the **DNS Zone** tab instead of **Records**

See merge request !572

vlogger for more precise stats with %O for apache >=2.5

this provides a more accurate traffic statistic, since also includes the amount of bytes received according to [apache doc](https://httpd.apache.org/docs/trunk/mod/mod_logio.html)

i could not make work version >= 2.4.7, so i opted to use this for version >= 2.5

See merge request !571

stretch added



See merge request !568

create directories for letsencrypt



See merge request !569

mkdir for letsencrypt

this folder is needed by **file_put_contents** when **.well-known** is clean

See merge request !567

added setting

this setting is needed for FTP traffic stats

See merge request !566

Fix for Issue #4363 - dns_templatezone_add not working

This fixes Issue #4363.

'xfer' column can not be NULL in dns_soa table. Same solution is used in interface/web/dns/dns_wizard.php file.

It also returns created dns soa id - without return value SOAPpy would fail with "SAXParseException: <unknown>:1:0: no element found". All other functions I checked do return a value.

See merge request !564

added -l to umount commands

the log folder is not deleted, because the **umount** command needs to be lazy, that's why we added the **-l** argument.

```
Tue Mar 21 23:59:01 UTC 2017 umount: /home/0/57/log: target is busy
Tue Mar 21 23:59:01 UTC 2017 (In some cases useful info about processes that
Tue Mar 21 23:59:01 UTC 2017 use the device is found by lsof(8) or fuser(1).)
Tue Mar 21 23:59:01 UTC 2017 rm: cannot remove '/home/0/57/log': Device or resource busy
```

See merge request !561

Debian stretch



See merge request !563

Added possibility to set new aps to disabled by default 2

Update for ispconfig/ispconfig3!552

See merge request !558

context corrected



See merge request !560

fixes dontlog vulnerability

this fixes #4585

See merge request !559

This reverts commit dbec32fa

Update apache_ispconfig.vhost.master

error corrected

See merge request !539