Moar fixes!

I know that I probably *should* be focused on adding content right now, but there have been quite a few people giving me some solid feedback lately. It's really highly motivating to chase down and squash bugs. Bonus: it means the same bugs and issues won't get reported anymore, so anyone who plays from this point forward will be reporting brand new bugs! YAY!

* Added some additional text to the first tutorial area that explains the energy bar better.
* Added a shortcut key ("C") to drop objects from the inventory directly into levitation mode.
* Added an "installed" indicator to the player's augments to show that they only need to be crafted once.
* Added an interaction hint for throwing levitated objects ("F").
* Switched the effect of clicking and shift+clicking in containers. Clicking now moves stacks, while shift+clicking moves single items.
* Turrets no longer respawn if the player leaves their area and returns.
* Removed the "install" interaction hint for augments that were already installed.
* Removed the yellow/gold background from the augment menu for entries that were learned, but not yet installed.
* The player's augment menu entries now have dynamic icons instead of a single static one.

I'm not going to go out of my way to look for new testers for the next week or so. That should give me some time to focus on the story, obstacles, and actual content. Wish me luck!