Give support to custom proxied redirections

+ Give support to custom proxied redirections to provide local HTTP
  servers from Zentyal Remote using /etc/zentyal/remoteservices_redirections.yaml
Remove proxy redirections file if not longer used
Use a more custom way to set proxy redirections
Fixing absolute URLs rewrite rule pattern
Redirect to / from /ebox using remote access to avoid blank page

* This happens as /ebox does nothing when the user is already identified.
* Redirect to / when this happens
Handle domains that are actually IPs in the LogHelper
releasing samba 3.0.20
Fixed path escape on Reporter::SambaDiskUsage
Merge pull request #403 from Zentyal/ejhernandez/blank-remote-access

Redirect to / from /ebox using remote access to avoid blank page
Merge branch 'ejhernandez/rs-redirection-conf' into 3.0

Conflicts:
	main/remoteservices/ChangeLog
Restart firewall module when a firewall observer module

+ Restart firewall module when a firewall observer module is
  stopped using CLI or EBox::Module::Service::stopService
Fixed recursive bug that tried to add two times the interface to InterfaceRates model
Start/stop a firewall observer now restart fw

Only from CLI
Several changes to DNS transparent cache feature

+ Set transparent DNS cache firewall rules unless the module is
  temporary stopped
Set proper order to restart firewall without service interruption

* Stop must restart firewall *before* the module is stopped
* Start must restart firewall *after* the module is started again after a temporary stop
Set inline firewall rules unless IPS module is temporary stopped
Set some squid fw rules depending on module state

* Set transparent HTTP proxy firewall rules unless the module is
  temporary stopped
Add restartOnTemporaryStop attribute to fw helper

+ Add restartOnTemporaryStop attribute to firewall helper to
  indicate to core if firewall must be restart on temporary stop
  events
se restartOnTemporaryStop attr to restart fw when needed
Use new version dep for core to have temporaryStopped method