Updated several gems:

- aws-sdk from 1.29.0 to 1.29.1
- redis-namespace from 1.3.2 to 1.4.1
- resque-scheduler from 2.3.0 to 2.3.1
- rspec-core from 2.14.5 to 2.14.7
- rspec-expectations from 2.14.3 to 2.14.4
- rspec-mocks from 2.14.3 to 2.14.4
- simplecov from 0.7.1 to 0.8.2