* Add magic encoding comment to test_swot.rb, so Ruby knows its UTF-8
* Add assertion for testing a valid email returns a UTF-8 string
* Add Travis CI build status badge to README
* Define `#get_path` to get file path from domain
* `#match_academic_domain?` and `#name_from_academic_domain` use `#get_path`
* Strip input `text` within `#get_domain`
* Replace `File.open` with `File.read` in `#name_from_academic_domain`
* Be more concise
* Ensure file is closed
* Add Travis CI
