Tweaks to make module more friendly to DEVELOPERS

- Added a `.flavor` property to the `options` object.
- `"cancer"` is now an option in the flavor property of the options object in addition to `"developers"`, for a classic Ballmer quote.
- Changed `.case` to `.casing` (because `case` is a reserved js keyword and could become annoying).
- Changed the `developers` variable as it now just describes the final loremipsum `content`.
- Updated the default call to `ballmer`.
- Updated readme to cover the new option.