Use of block instead of wall for consistency.
Black magic fix!
Removes timer requirement
Small change
fixes #1444
undo birthday changes, add slot # to hud
add switching slots back in
switch save slots un-deleted
Merge pull request #1451 from edisonout/savingfix

Add switching slots back in
fix crashing on collision
Merge pull request #1459 from CalebJohn/proj-die

Fix Rainbowbeam and Basketballs
Don't always post the release thread

After release, we sometimes need to create a bugfix release. Instead of
having to manually do this, make the script that posts the thread and
tweet smart enough to know when we create a bugfix release. To make a
release as bug fux, just include the words "NOSOCIAL" in the body of the
pull request
Make tween.update more robust

It can now handle negative numbers, nil, 0, and any kind of garbage.

Fixes #1455
Actually test what I think I'm testing
Check that the door passed into the level exists.

Before, we just assumed that a door would exist. If someone had saved in
the old Valley of Laziness, their game save would try to load an invalid
door. We now check that the door is valid before using it.

Fix #1456
Merge pull request #1445 from CalebJohn/upper-bb

Prevents upper-bb during digging
adds bb checks
Merge pull request #1460 from hawkthorne/fix_tween_update

Make tween.update more robust
Merge pull request #1468 from CalebJohn/collide

Checks if bb exists on blocks and Platforms
Check to make sure hwe ave a BoundingBox

Somehow the enemy's bounding box is getting set to nil. Just check to
make sure that isn't the case. Fix #1465