Add s to metrics that are plurals

0.1.4

Add 's' to metrics that are plurals.

Add status_code and simulate flakey service.

0.1.3

Add status code.

Changed slow API to exponential distribution, not uniform.

0.1.2

Change random function to exponential distribution.

Improved metric names.

0.1.1

Improve naming of metrics.

Initial release

Initial release. All information is in the README.