Fix a display issue when a worker's job is empty and it tries to sort on nil
resolve issue 509. display of hash keys
Add timestamp and pid to verbose logging
require time before monkey patching
print out deprecation notice about old signal handling
update changelog
update version to 1.22.0
Add before_pause, and after_pause hooks to be run when the worker is paused
Add description for before_pause and after_pause to HOOKS doc
Small pause hook formatting clean up in HOOKs doc
Use public method in test, no need to instance_variable_set, and lower sleep time
remove preload task.

Fixes #633
Refactor @cant_fork and $TESTING. We need separate control in the next commit to prevent invocation of before_hook when in fact we don't fork.
Don't run the :before_fork hook if we're not actually going to fork.
Don't run the :after_fork hook if the worker hasn't actually forked.
More idiomatic hook definition, tests no longer use globals, and are correctly cased
Merge pull request #668 from steveklabnik/remove_tasks

remove preload task.
Add 'failing' queue to demo readme.

Conflicts:

	examples/demo/README.markdown
'works' => 'workers' in comment.
added exemptions to stale.god