Added permission "mehgravity.nocheck". When a player has it the plugin will not check for gravity and will not move anything down when the player interacts with a block.
Added Metrics
Paintings and item frames will drop. This is not a bug because they aren't actual blocks(They are tile entities) so they won't be moved down.
Blocks that don't have a valid spot to sit on will simply drop as an item including all contents in inventory. Not a bug though.
