New icons.
Added myself as icon author.
Merge pull request #51 from snwh/master

New icon by Sam Hewitt
Fixed #48 - improved the start up time

Fixed this by causing a lot of time-consuming operations to be delayed
until after startup.
Fixed #49 - Page stack should work properly now
Added a settings sheet for in the future
Removed label used for debugging
Pulled in new changes from master