Further refactoring;

- Reduce spaghetti code in BoardPresenter, ListPresenter and CommentPresenter.
- Change default formatting of cards.
- Go through decorator to access resource attributes for display.
- Move #title method to DecoratorHelpers to allow sharing.
- Add more tests around showing resources.
- Minor copy and whitespace changes.
Further refactoring;

- Go through decorator to access resource attributes for display.
Merge pull request #9 from gavinlaking/feature/spaghetti

Further refactoring;