add deny display by file name and|or file extension

[zendyani]

No description provided.

[nightsh]

Thanks a lot for your contribution! Everything seems alright at the first look, your commit will be merged as soon as I'll test the functionality (today, maybe).

Also, if you have any ideas and not enough time/resources to implement them, please add them to the issue tracker, and we'll talk about them :-)

[zendyani]

Thanks ^_^