Various code cleanups and a few actual bugfixes courtesy of Zend
fix aliases
Add $Id$ tag
don't attempt to unlink directories
Missing )
Glob returns false. use the original parm
If glob does not return an array, deal with the single filename.
Back out wildcard handling in unlink_if_exists() until I can test it.
Make unlink_if_exists work with wildcards using a foreach and glob().
Update arp table before decide for a missing arp entry
Ignore pflog and plip interfaces.
Create a xml_safe_fieldname function which strips out all of the bad characters that could be associated with a xml fieldname.
Initial revision