Full new version 0.0.3-RC

Everything has been reviewds/corrected and optimized to prepare a
sanitize envionement for MarkdownExtended.

This new version 0.0.3 is declared as the RELEASE CANDIDATE for version
1.0.0 (some test are required first and the Console object may be
reviewed)

- The global container MarkdownExtended now just handles static methods
to build dependencies, retrieve them and some helpers to parse a
content or a file ; its registries has been remapped in a single
registry that handles all dependencies
- All config is now handled by the Config object, that extends the
classic Registry (Config has some default values that can be
over-writes by a config file and/or some user config values)
- New OutputFormat object: this may handle and construct the resulting
strings in a certain format (only HTML for now) ; the final formater
object is handled by the OutputFormatBag global object that can be used
no matter which format is chosen
- No grammar filters or tools now creates some HTML, they all must use
the OutputFormatBag object and call its 'buildTag' method
- Some common methods are now in the Helper object, that must be used
by any namespace's classes
- The binary "mde_console" is renamed in "markdown_extended" (this is
what it is …)
- The manipulated contents are now represented by a Content object,
that is filled during parsing to retrieve a set of content's stacks -
this must be the only contents object (it holds the original content
and the result)
- A new feature is introduced by the Templater object: it can replace
some specific tags in the parsed content, fill in a template file with
the content and auto-insert some mandatory blocks
- Some Tools has been removed as they were not really usefull (their
features has been moved in the global Helper class)