Change process title to indicate loadsjs
Refactor layout of this project.

This changes the repo to contain a single "loadsjs" project with custom
test runner.  It drops the mocha-reporter support and implements an
experimental new interface between loads and loadsjs, which should help
support generation of higher load.
Fix ordering of items in loads_status.
Don't stringify loads_status, it needs to be sent as an array.
Increment hit counter even during duration-based tests.
Catch and report exceptions raised by the test.
Use "async" module to clean up horrific recursive-looping code.
Use a helper function for getting current time in seconds.
Fix some jshint warnings.
Fix typo in comment
Merge pull request #5 from mozilla-services/layout-refactor

Layout and interface refactor