`ResqueScheduler::removeDelayed` does not work on version 1.1

[firoxer]

ResqueScheduler::removeDelayed calls removePrefix on line 115. However, in php-resque-scheduler version 1.1 the php-resque dependency is at version 1.2, where removePrefix does not exist yet, and the removePrefix call fails silently, returning just false. I assume the silent failure is caused by dynamic calls to Redis wrappers (or Redis itself).

Upgrading to dev-master fixed the problem.

I guess this bug isn't really worth a new release, though it'd be nice if the issue was left open for other people to notice until a new tagged version of php-resque-scheduler appeared. I'm not too keen on depending on dev-master. :)