[CLE] translate description in English, and fix library version in taglib.tld file (tlib-version field)
[CLE] isolate in a private method ObjectMapper creation and configuration
[CLE] reformat code
[CLE] add license text and refine README
[CLE]upgrade to spring-test 3.2.2.RELEASE
[CLE]add property filtering based on Pattern about their class name.
upgrade guava, spring, junit, slf4j, and add fest-assert
[CLE]add logback, upgrade jackson nad fix some serialization issues
[CLE]fix unit test, and configure fields serialization.
[CLE]refactor DEbugModelTag to simplify structure: limit access scope variables, and rename methods.
[CLE]fix typo in method name
[CLE]simplify building of Map of Attributes to serialize by context, and add formatting to some classes.
[CLE]log some instructions: security warning, how to disable tag, how to exclude some classes from serialization
[CLE]replace null with Optional
[CLE]fix developer informations