Fixed importing by directory

[SYANiDE-]

Fixed issue where input directory name returned nothing; directory as filename now works.

[SYANiDE-]

So, providing a directory name now works. Also, I changed it so as long as the files end with results.xml they will take. However this can be changed quite easily to just end in xml, or I can change this so the filename need only contain a keyword. However works best. Still an issue, is the inability to deal with nmap xml outputs having multiple hosts. So each xml currently can contain one scanned host only.