Updated version to 0.3.1

Version bump to 0.1.0 and release.

Version bump to 0.0.9

Fixed attaching a file to an empty message.

Stepped up the multipart message parsing a notch.

Fixed an issue parsing multipart messages where the boundary was encl…

…osed in quotes.

Last touches before v0.0.5.

Implemented features from Justin Perkins (creating labels) and Mikkel…

… Malmberg (email search options).

Little fix for setting content to non-encoded messages.

Bumped up version.