Add passive socket timeout handling
Extract pasvTimeout handling. Add call to PASV sockets used in getGetSocket() and list().
Merge pull request #86 from MailOnline/pasv_timeout

Add passive socket timeout handling
Add debug mode and some style changes. Fixes #87.
Bump version number
In case of error, `get` should return. Fixes #92.
Bump version to 1.3.1
Remove warning from README.md