validate_job! fails for ResqueScheduler.enqueue_at_with_queue
pass queue from enqueue_at_with_queue to validate_job!
A bit of RuboCop touchup on behalf of @vijaykramesh for #286
Preparing for 1.9.11 release

including backport of `require_paths` fix and runtime dependency
updates.
Merge pull request #289 from meatballhat/v1.9.11-prep

Preparing for 1.9.11 release
Merge remote-tracking branch 'upstream/v1.9-stable' into merging-v1.9-stable

Conflicts:
	HISTORY.md
	lib/resque_scheduler.rb
	lib/resque_scheduler/version.rb
	resque-scheduler.gemspec
	test/scheduler_test.rb
Merge pull request #290 from meatballhat/merging-v1.9-stable

Merging v1.9 stable