Use MODSEQ values
throw an error if trying to copy message without opening a mailbox first. Fixes #35
return empty array if mailbox is empty while listing messages
Merge pull request #40 from whiteout-io/master

Removing iconv dependency from inbox
bumped version
options should be replaced by extendedOptions
Merge pull request #41 from whiteout-io/bugifx

options should be replaced by extendedOptions