First pass at using work-already for web tests of the Echo application.
Move generic web tests for all apps into a common library function.
Add calculation application tests.
Test woes; partially fixing brokenness in cluster tests involving Express. Adding Draw application test, not passing yet.
Add full config into echo and calculations example apps, to make them better as examples.
Improve all example application start scripts, to make the configuration more obvious and helpful.
Expose thywill.applications, fix test code to look at the right applications for multiple thywill instances.
Simplify socket.io config. Fix issue with sharing application instances in test code.
Much refactoring of test applications; move that off into child processes since there doesn't seem to be an easily identifiable way around the issues with Socket.IO and the Redis store for multiple Thywill instances in the same process.
Fix up subprocess issues when testing. Put draw application test in place.