2014-09-02 Foivos S. Zakkak <foivos@zakkak.net>

   - Replace getlogin_r with cuserid in order to get the effective user's login
     instead of the user's owning the terminal the process runs in
     Should fix issue #1, not sure about #9.
   - Fixed Feature macros
   - Check for proper values in LIMITS
     Should fix issue #6