FeedItem has now a member to store the date/time the feed was created/updated; did some minor refactoring by moving util methods into it's own class to make them testable
Merge branch 'f_add_time_to_feed_item'
A feed now knows it's FeedItems
Merge branch 'f_feed_knows_its_feed_items' into development
Message ID and Date are added to the message stored on the IMAP server
Feeds are now really stored on the IMAP server
ImapFacade has now a method to check if a message with a certain Message-ID exists in a folder
FeedItems will only be stored if they don't exist yet on the IMAP server
Using X-... message header rather than Message-ID
Processing all feeds as given in the config file
Ignoring more config files
Support for SSL
log file format change; log level now after time stamp
Included version number; version number printed
Enhanced documentation
Merge branch 'release-1.0' into development