Changed checking priority to reduce DS impact. System now iterates though grids one at a time (5 per second) rather than all at once, every few seconds. Also logging changed, writes to console log rather than separate log file.

Changed location of config file into save folder/Storage. Older games should still load configuration correctly and migrate settings automatically.

Added /gridlimits command

Added logging of grids breaching limits (in NaughtyList.log)
Changed automatically-generated config file (GridBlockLimits.xml) to contain only a dummy placeholder, so adding the mod to an existing world won't push arbitrary limits onto an arbitrary list of blocks

Patched an issue where not all grids were being checked.

Tweak for DS damaging speed