Reporters

[cknadler]

This is more or less a meta ticket for the entire reporters feature. There are three major parts:

Reporters

Reporters are subclasses of the Reporter class. All output to the user is handled by a Reporter. This makes it extremely easy for someone to add a new output style to the project.

Default Reporter

The output by default will need to be through a reporter called default. All current output code will have to be refactored into that reporter.

Configuration File

Setting the reporter should happen through the config file. A reporter: key should allow the user to set the reporter. No CLI additions are necessary.

[cknadler]

Holding off for 0.3.0 for this issue.

For now, going to bump to 0.2.1 and improve the default reporter.