Release Notes 2018.07.16

* New optional build tutorial: Learn advanced tricks and win unique pieces
* New cheat: Super Glue. Really strong boat connections.
* Inventory icons grouped together by piece type to save space
* Inventory icons show number of how many available
* Inventory icons show number of how many obtained on mouse over
* Inventory icons bounce on hover
* Inventory icons have attention badge to indicate new types
* Inventory tray can be dragged and scrolled without affecting the build area
* Inventory category icons now highlight the selected category
* Grabbed pieces represented as icons when held over the inventory menu
* Pieces can be removed from the boat by dragging them over the inventory
* Fixed: Ctrl-z could cause boat position to jump
* Fixed: Multi-part pieces (like sails) were highlighting incorrectly
* Fixed: Moldy plank and Long Squid plank were jittery
* Fixed: Grabbed pieces could auto release when dragged from inventory
* Updated suggested key background image to be a soothing blue
* Improved lighting when building during twilight or fog
* Improved predictability of piece placement when dragging on and off a boat
* Prevented pieces from being placed too high or low
* Disabled underwater camera when building to allow better visibility looking up from far below