Update to allow clean entry of Whitelist Items

Added non alpha delimiters hardcoded so no preg_match errors and entries in whitelist can be human redable w/out extra leading and trailing chars.
Update to allow clean entry of Whitelist Items

Updated this along with whitelist.php to allow for simple entry of names in the whitelist, this file will allow proper application of those blocked names to exported NIDS sigs.
Merge pull request #197 from Xen0ph0n/master

Update to allow clean entry of Whitelist Items