Log Message:
Update p5-Log-Dispatch to 2.54.

2.54     2016-01-18

- Fixed File::Locked even more. While some deadlocks were eliminated, there
  was still an issue when a Log::Dispatch object was created in a parent
  process and then recreated in the children. If the close_after_write
  parameter was false, then there would be a deadlock.

- Made Syslog work on a threaded Perl when the threads module was not
  explicitly loaded. Fixed by Konrad Bucheli. GitHub #13.

- The log() method now accepts a level parameter as an integer. Fixed by Steve
  Bertrand. GitHub #15.

2.53     2016-01-14

- Actually fix File::Locked, this time with some actual tests.

2.52     2016-01-13

- Make File::Locked output do an explicit unlock if the close_after_write
  option is not set. Without this it would open the file once in each process,
  attempting to get a lock at open time, pretty much guaranteeing a deadlock
  in a multiprocess environment. Now it should work sanely whether
  close_after_write is true or not.

2.51     2015-09-19

- Fixed t/08-screen.t on Windows platforms.