Encode body content.
Merge branch 'utf8-body-encoding' of github.com:cmoralesweb/imap into cmoralesweb-utf8-body-encoding
Add test for #39
Merge branch 'utf8-body-encoding' of github.com:cmoralesweb/imap into utf8-body-encoding
Merge branch 'cmoralesweb-utf8-body-encoding'