Added two settings that we may need to use to fix the problem with the set headers from haproxy missing randomly
added isSSL env as a helper for sogo's webmail config
Moved back zentyal-sogo.conf file to apache's sites folders and improved the http/https detection code
zentyal-sogo is enabled as a site not as a module
Give real no support to /media in Disk Usage

Even when modules report they use a file system mounted in /media
default value for @printers
default value for @printers
better error message when we cannot find which dns entry corresponds to the server host
rpcproxy error message for when we have not external ifaces configured
Merge branch 'master' into rpcproxy-better-message
create-db script test a mysql connection. Delete user/pass if it fails

 - So a new user/password could be created
Database operations at create-db splited

 - Thus if any of them fails, the other will also be executed
Updated changelog
dovecot master password configuration
generate master password to be used from SOGo to access imap
Fix context name in warnOnChangeId call

Making warnOnChangeId works again
When creating domains take in account SLD
 Give support to data in use exception for in-place booleans
DisasterRecoveryDomains can notify other models
Remove debug statements