Enhanced command line, unix socket & rake tasks

nope... no chance.

app initializes the application if it hasn't been yet (https://github.com/teamsnap/emque-consuming/blob/socket-control/lib/emque/consuming/helpers.rb#L6), error_tracker is created on initialization of app (https://github.com/teamsnap/emque-consuming/blob/socket-control/lib/emque/consuming/application.rb#L38), and occurrences is a hash created on initialization of error_tracker (https://github.com/teamsnap/emque-consuming/blob/socket-control/lib/emque/consuming/error_tracker.rb#L8)