Use end_with? instead of regular expression
Reword log name collision error
Refactor: extract path computing logic into a method
Change access to loggers by creating accessor methods in Rails logger
itself.
Previously:
  Rails.loggers.newlog.error()
Now:
  Rails.logger.newlog.error()

The benefit is that, in Rails controller and views, the "Rails." can
be omitted.
Only initiate a log if the name is not in collision witht existing
method names.
Raise error if Rails logger class is not found
Update message for name collision
Update readme to document new accessor methods