Add a TODO.md for tracking.
Add interval-metrics and timbre.

- interval-metrics may be the right way to do internal instrumentation.
- timbre looks like a nice way to do logging and profiling.

Whee!
Remove some obsolete comments.
Trying bouncer to structure validating inbound data.
Running and checking input.
Merge pull request #3 from pcn/validate-text-input

Validate text input