ActiveSupport update to 4.1.x

# Overview
This pull request changes the *daemon_objects* gem dependency to ActiveSupport 4.1.x from 3.2.x. The specs all pass and it looks like the only real dependencies were the Logger and string extensions. I could have missed others, but those were the ones that stood out. I did not see any need to update specs related to these dependencies.

# Test Dependency Note
Running bundle install will load the latest Rspec (3.1.x), which will complain about the specs in this PR with deprecation warnings. A separate pull request #8 will update the specs to remove these warnings.