Address some minor quibbles regarding crafting and weapon selection

In response to  [this reddit post](http://www.reddit.com/r/hawkthorne/comments/1p4eic/dont_want_to_overstep_my_bounds_here_because_i/) I updated the crafting annex to auto-select either the craft slot or the ingredient you just added, depending on whether there is a valid recipe.

I also changed the way weapon deselection works. Now, after deselecting, the weapon you were just wielding will appear first when cycling through your weapons, rather than last.