pfSense

add Verizon

fix text

fix reject rules to the same as in 1_2. return is valid on all rules

fixup text

show correct site in "Unable to communicate" error, clarify error message.

Make sure that the upgraded load balancer configuration reflects the new gateway names

Fine tune the wording

Correct CSS class name for the normal view of the gateway description

Disable the delete icon for system gateways
Set the background for the description to grey if this is a automatically added gateway. Normal ones stay red.

Do no throw a duplicate IP address warning when creating a new entry from a existing gateway which was previously a
automatically added gateway entry.
- clarify comment message