v1.1.11

Fix issue causing concrete powder to fail to convert to concrete when a water source was placed next to it. This added what could be a potentially expensive check (in proportion to the number of events) for adjacent concrete powder blocks during a water block's BlockPhysicsEvent. This will be monitored. See the javadocs for the Util#findConcretePowder method for more information on this issue.

Fix issue where emptying a bucket on an unsafe, flowing source would become marked as "safe" in BlockStore despite still flowing in the World, causing an effective desync between the stored vs actual state.

Added debug messages with a master toggle in config.yml (debug: true) which will be sent to any player with the safebuckets.debug permission.