Remove unused guy property: `is_on_ground_really`
Add missing dependency directive
Add wall sliding to Guy
Implement wall kicking
Merge branch 'topic/ghi/6' into dev

Fixes Github issues #6 and #7
Prevent guy from wallkickdashing without powerup
Prevent guy from airdashing while wallsliding
Fix guy speed after wall kick
Merge branch 'topic/ghi/42' into dev

Fixes Github issue #42
Clean up code just the tiniest bit
Allow air dash after non-grounddash wallkick
Merge branch 'topic/ghi/43' into dev

Fixes Github issue #43
Air dashing into a wall starts a wall slide
Merge branch 'topic/ghi/47' into dev

Fixes Github issue #47
Obliterate the color red

This should be reverted eventually
Add lo, mid and hi methods to Rect
Add TODO as a reminder to "fix" js consolidator
Fix a few dependencies
To levelroom, add a dependency on hud.js
Remove that whole "lines vs. terrains" thing

Right now we only have 2 terrain types, both of which are lines, so it's
pointless to distinguish between them. In the future if we get different
terrain types, we can put it back