phpMyPirates 0.0.6 Development Release

This is primarily an 'ease of use' release. The code now handles 'forward' and 'back' browsing without duplicating or undoing promotions. A mass updating feature has been added to pirate management tables to allow easily promoting a group of pirates to rank. Another addition is a comment field for promotions, also available with mass updating. Barring major bugfixes, this will be the last release before the donation tracking system is implemented.