Fix: TypeError: 'NoneType' object is not iterable
isdisjoint() can't be use with lists
Strip hyphen at the begining of the line
The -t and -x options now work.
If the option is not specified, it's already a list by default
Merge pull request #2 from MiLk/fix/list-isdisjoint

isdisjoint() can't be use with lists
Merge pull request #3 from MiLk/fix/playbook_items

Fix: TypeError: 'NoneType' object is not iterable
Merge pull request #4 from MiLk/feature/strip-hyphen

Strip hyphen at the begining of the line
Merge pull request #5 from MiLk/fix/tags-options

The -t and -x options now work.