* Simple entity removal in Builders
Performance could be improved
* Removed rocks parameter
The increased radius caused simple-entity to work
* Added another way to remove units that should be more efficient
* Changed find_entities to use area instead of radius
* removed remove_units function
* changed function name from names to name
* added table.shallow_copy
* reworked 'remove_*' builders
* used remove_* builders for existing maps
* update .luacheckrc
* Added links to documentation for each public function
* Added links for new functions
