Fix block one function permanently from the prompt

The whole category has to be set to restricted in order to
restrict one function - but restricted+ask meant no prompt
for any function in the category.
French translation update

Some strings fixed/translated
Better error reporting, refactoring
Small fix for French translation
Merge pull request #1249 from tonymanou/patch-1

Updated French translation
Merge branch 'master' of github.com:M66B/XPrivacy
Revert "Fix block one function permanently from the prompt"

This reverts commit 97cc0ae3e78ba40153f5a657c37b32d4afd2dd0d.
Fixed French translation