pfSense

fix typos

Add listtopic. Remove tab

s/interfaces_carp_configure/interfaces_carp_setup/

Do not enable / disable javascript field. Resolves #41

Fix potential bug in UPnP config.
If the shaper has never been used, the value being checked may not exist or not be an array.

Add traffic shaper queue field to UPnP config

Adding enablefields tag to enable/disable form elements

• Create two new functions lock($subsystem)/unlock() to have more reliable locking using semaphores.
  This function can sleep till the resource is free and can help find not well behaving code.
• Remove most of the config_lock/config_unlock logics on the whole scripts/pages it is an abuse of this....

don't kill routed unless it's running to avoid error in system log

• Hide interfaces internals to other code and use the propper interfaces.
  Basically use get_interface*() functions instead of accessing fields like 'ipaddr'/'descr' etc...
• Make get_interfaces_with_gateway less heavyweight by getting information from the configuration stored in config.xml...