Version 0.6.2

Fix duplicate flags where the difference is the -

* Add new function that checks if a flag exists in a list, with the option
to ignore -, so flag == -flag.

* Remove old pkg_file variable from the save_rules() method and replace it
with self.path.

Remove no matches found message when the package name is ambigious since
the get_atom() function already warns about that and lists similiar
package names.