Pause walk and Make live button

The Current run: Pause walk and Make live button pauses the current walk, updates its search indexes for speed, and makes the walk live (ie. deletes the current live database and replaces it with the current walk). This can be useful if you ran out of disk space while indexing and subsequently freed up some space, or if a long running walk was stopped and you want to use the incomplete walk. If the walk was abandoned due to an error, make sure you resolve the problem before trying to make the new database live.