test server can now handle more than one response before exiting, and reply with more than one %env
add test for an activation that takes 3 tries
add test for a revoked claim while trying to activate
test handling 500 response while activating
add test for 500 response while renewing
remove offending claim when it causes a fatal error
New implementation of test webserver

Switching from the 'use forks' implementation to a customer forking implmentation.

The use forks implementation was causing spurious SIGABRT.
Verify warning message when claim fails
Test claim revocation while claim is active