Testing alternative collision detection method
Merge branch 'master' of https://github.com/conanc2c/dangerous-headbutt into ConnorCollisionWIP
Added collision flags for indivudual tiles

It works properly, however, there is an issue. Since the flags are set based on the contents of room_array, it will improperly set tile flags that are on the very edge of the array (which will give wrong flags in the context of the ENTIRE level). A possible (but maybe impractical?) solution is to change the exposed edge detection from room_array to an array that contains the contents of the ENTIRE level. This may also be handy in case we want to change the flags based on something like terrain destruction in the future.
Merge pull request #12 from conanc2c/ConnorCollisionWIP

Merge master and Connor's WIP