v1.0.1

- [x] Rework into class.
- [x] Added activation/deactivation hooks to auto flush rewrites. Fixes #2.
- [x] Fix paths when SSL is in use. Fixes #1. 
- [x] Incorporate `addfilters` from Roots to support other themes.
- [x] Add composer.json.
- [ ] Update README.md (still needs to some work).
- [ ] Get people to test it.