properly introduced use of std::size_t in class commandlevel
declared setter functions in class commandlevel pure virtual
updated commandlevel.hh
updated class generic_argument
removed global variable definitions from boolean-type.hh and boolean-type.cc
created files for global variable definitions
updated generic-argument.hh
properly introduced use of std::size_t to class basic_option
declared setter functions of class basic_option pure virtual
updated basic-option.hh
made variable cyra::npos static
made proper update of class flag_option