glogg v0.8.3 released

This is a bugfix update of branch 0.8.X more, new features will be implemented on the future 0.9.X branch.

Main changes from v0.8.2: - New, more robust, preference storage backend - Filters and history are not overwritten anymore when several instances of glogg are used simultaneously - Filters dialog is more intuitive and shows a preview of each filter - Fix the nasty flash on the info lines when a small update is done to the log file

Please see the git log at http://github.com/nickbnf/glogg/commits/master for the detailed changelog.