Description of used libraries.

Logs:
- commons-lang3
- log4j: log API
- servlet-api: servlet API
- slf4j-api: facade log API
- slf4j-log4j12: adaptation layer between slf4j and log4j

Unit testing:
- hamcrest-core: required by junit
- junit: unit tests API
- commons-lang3

Other:
- commons-codec: digest tools.
- commons-fileupload:
- commons-io:
- devinsy-utils: util tools