Use body_from_email helper in all tests
Don't assume every email is binary. If charset is set, set src encoding to charset
Replaced symbols with string to match the actual hash that Sendgrid uses. Added theycallmeswift feedback
In test, store mail body text with real encoding but say is utf-8
Changed copy of a test title and replaced return with if/else
Added space around the =
Merge pull request #27 from innku/em_dont_assume_encoding_binary

Dont assume mail body text encoding is binary