Tone down the logging a touch (!). Use SLF4J @ debug level.

Try to make isAcceptingTasks() return more quickly, and avoid checking
the container in the cloud as this is subject to a timeout. If you have
a non-responsive host, it can seriously hold up the rendering of the
home page.

Signed-off-by: Nigel Magnay <nigel.magnay@gmail.com>