Merge pull request #1 from liyu1981/dev

new feature: asyncJob, secureAPI, and improved tests
Merge pull request #2 from liyu1981/dev

unit test: secureAPI (100%)
fix the bug that always use random port
now with default log.conf, and move example conf files to default
default server.conf and session.conf, and also auto-create dir structure if necessary
test coverage updated.