== Description of used libraries. Various: - commons-codec: digest tools. - commons-fileupload: - commons-io: - devinsy-utils: util tools - servlet-api: servlet API Log libs: - log4j: log API - slf4j-api: facade log API - slf4j-log4j12: adaptation layer between slf4j and log4j UnitTest libs: - hamcrest-core: required by junit - junit: unit tests API