Fixed some marketplace bugs
Merge pull request #38 from vcnickerson/mattj/dev

Fixed some marketplace bugs
Merge branch 'Ian/active'
Changes
Little things
Added Shipyard Navigation
Fixed some shipyard controller stuff
Merge pull request #40 from vcnickerson/Connor3

Fixed some shipyard controller stuff
Incremental update to Shipyard Screen Controller. Combined ship/utility purchasing tabs. Removed onKeyboard() from ControlledScreen because we don't need it. Added new method to iShipUtility for modelers to define properly.