Forbid url in post, signature and website for new users

The post and signatures are blocked, the user homepage is just hidden.

Available settings:

• Number of post until the user is no more considered as a new one : from 1 to ... default 5
  
• Groups excluded of the restriction : default admins, moderators
  
• Allow pictures : default Y
  
• Allow url in quotes : default Y
  
• Allow url in signature : default N
  
• Allow display of homepage : default N
  
• Allow internal urls : default Y
  
• List of authorized urls
  

Note
Admins and moderators see the website in member profile.