support  the 3.0  and 3.1 version of spring mvc framework

Correct the log4j config file

Output all instrumented classes into physical files.

fix no default constructor found issue

Make travis maven runs in quiet mode.

Delete history data

Upgrade the version from 3.2.5 to 3.3.0.

Do some rename works. And I think 7 ttl days is more common.

2. Delete the history data before the setting that you can find the property name of history_delete_before_days in the application.yml file.

support collector docker images

Reset ports.