v1.1.1

1. Validate category name as directory on notes new
2. Ignore horizontal rules (---) after metadata
3. Add migration script from memolist.vim. It's put in scripts/ directory
4. Fix description of --color-always
5. Fix checking the latest version on selfupdate
6. Add Zsh/Bash completions
7. Add man manual

By 2., you can add <hr/> after metadata to separate your list from metadata:

Shopping
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- Category: memo
- Tags:
- Created: 2018-11-6T20:36:00+09:00
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- Milk
- Egg
- Meat
- Tomato