ppx\_module\_timer
==================

A ppx extension to record module startup times.

Modules using `ppx_module_timer` (included in `ppx_jane_kernel`) now have
instrumentation to record their startup time. If the environment variable
`PPX_MODULE_TIMER` is set (to anything), each module records its startup time,
and before exiting the process prints out all of the module times in the order
they occurred.