* Reworked step 2 to allow for empty DNS and empty gateway fields.
* Step2 now loads previous answers from the database properly.
* Fixed (the lack of) recording each network's IP and subnet to the database.
* Added (and disabled for now) a jquery feature for clearing the variables from the URL to keep it from getting exceptionally long.
Signed-off-by: Digimer <digimer@alteeve.ca>