Fix mailbox name gets convert to number
Merge pull request #145 from wavify/fix-number-boxname

Mailbox name gets convert to number
do more utf7 encoding and decoding for mailbox names
remove displayName
discard any double quotes for strings in BODYs in untagged FETCH responses
don't include ".PEEK" in fetch keys, only in command where applicable
fix readme style
be less strict in parsing folded header values
Merge branch 'upstream' into newfetch