pfSense

this is super annoying in VMware, exit if running in VMware

Correct function call.

• Make some sanity checks before using CURLOPT_SETINTERFACE
• close the curl instance after using it. With CURLOPT_SETINTERFACE a new instance is needed to correcly use it.

• Revert cache file path to the config file one, it was braught to my attention that if we try to update very often might get blacklisted.

• Use CURLOPT_SETINTERFACE so we correctly check the ip address for each configured interface.

Remove code used by ez-ipupdate, it is now obsolete.

Do not take into consideration root_ queues.

Remove not used anymore file.

Remove unnecessary copying of dyndns cache file for ez-ipudate program. It is only a cache file after all and i do not think ez-ipupdate is used anymore.

Now that the cache file is moved to /var/etc no need to mount rw since that part is writable even on embedded by default.

NOTE: that the cache file is moved on /var/etc no need for it to be on the /cf part.