qpsmtpd.t: added tests for hook_responder
Qpsmtpd: style changes in hook_responder
added test for run_continuation
added tests for run_hooks & run_hooks_no_respond
simplify config->from_file by not requiring full

file path. Instead, figure it out the same way as the 4 of the 5 caller do (by calling config_dir). Allow the 2nd arg to be the file name.
remove YIELD cruft introduced by rebase
Merge pull request #112 from msimerson/qpsmtpd.t

Qpsmtpd.t