Building collisions fixed

Version 0.92 is now available - these are the changes:

• Building collisions have been fixed. They sometimes would run into eachother, which had some neat effects, but would have been inconvenient when I get around to actually opening up the buildings and putting stuff inside them.

Before:

After:

• The method of generating seeds from map names has been changed. This is because I noticed two maps mp_063006 and mp_070206 were exactly the same. So I've revamped this to lessen the possibility of this. It also displays the seed that was used so you can tell for sure if you have found a duplicate.