show error-message when a client / reseller change the ip for a domain that was created by the admin

FIX #3939: Import TXT resource records with semicolons and respecting it's case

I replace the RegEx that ISPConfig uses to see if it must truncate the line sith a semicolon.

Now the line does not get truncated if the semicolon is between quotes.

Later, when ISPConfig lower the case of the parts of the lines, I changed the condition, so it does not lower the case of parts that begin or finish with quotes (First and last part or TXT RRs) or it has a semicolon, meaning it was between quotes and wasn't replaced previously.



See merge request !351

- added 'certbot' to which command (if letsencrypt is not installed as system package, but certbot is)

This reverts commit 008ef889.

add optional arrays for service-name to function system->getinitcommand and also…

… a parameter to check if the current service exists (mandatory if you use an array) Fixes #3910

See merge request !349

add optional arrays for service-name to function system->getinitcommand and also a parameter to check if the current service exists (mandatory if you use an array)

Master



See merge request !348

Proposed fix for #3929 (letsencrypt can not be activated when a new website gets created). Needs testing.

Removed ubuntu1604.lib.php which is not required anymore.

Master



See merge request !347