pfSense

Allow user to set interval between attempts to resolve hostnames configured on aliases

Include the burst size in the limiter. Submitted-by: http://forum.pfsense.org/index.php/topic,62470.0.html

Add warning comment about missing IPv6 implementation

Add used binary

Remove referenced binary not used anymore

Remove unused code and spurious alert

Use file_put_contents for simplicity and readbility

• Use when needed the family for get_real_interface
• During dhcp setup use -n for cp to avoid coping uselessly

Use family parameter for v6 to get correct interface

Do not do the same tricks here that are done on get_real_interface but just call the function directly