Roadmap 0.3.0

- [x] Add separators (#53)
- [x] Make or ditch shortcut keypress (#38) - TBD
- [x] Handle a pagination system for long list (#40)
- [x] ~~Make or ditch Windows unicode support (#43) - Help warmly welcomed here. Can't find any "checkbox" type of unicode char working on both Consolas and Lucida Console fonts...~~
- [x] Tests!