2 Updates and 2 additions

Added eval.pl and find-mask.pl.

file-completition.pl
- Fixed cycling paths with spaces
- Addon dir is now working for both, default installation and portable
mode
- Commands to use tab cycling are easier to customize
- Ability to only complete filenames for commands

whois-on-pm.pl
- A whois is now only sent when you get a message from someone (not with
/query for example)