Extend user ability

[micker]

in user administration we can

• Select a content for profil
• Number of content
• Maximum item peer category
• Language

if think it will be interesting to add

• Number of content peer category
• Select category allowed
• Auto item creation for link item to profile
• global rule in configuration

=> maybe refactor it in a subform system

1. Set joomla group
2. Set number of item peer category
3. Set language
   And repeat

what do you think @ggppdk ?