dv/redis-semaphore — pull request #16 by dubdromic (2013-07-17 00:59:11+00:00)
Title: Fix current_time support for Redis versions < 2.6

This is a quick (and possibly dirty) fix for #15. I don't know if version-specific code paths are a no-no (I leave that up to @dv) but this does fix the issue.