0.0.1->0.0.2
	+ switch xerces-c to libxml2
	+ rename namespace to intifada
	+ ldso version not updated
0.0.2->0.0.3
	+ handle item presence in Record and Field_Specification_Data
	+ handle os_wrappers subdirectory installation
	+ handle pkgconfig
	+ enable xml handling
	+ starting Block implementation
0.0.3->0.0.4
	+ handle (very) basic Message implementation
	+ handle intifada.pc and intifada-$version.pc distribution
	+ handle known type recuperation (untested)
		 + Type::get_all_types:walking through all types with an object functor
		 + Type::get_string:getting string type
		 + public vision of enum type suppressed (preparing dynamic type creation)
	+ library installation in $prefix/lib/intifada-$version/intifada
	+ includes installation in $prefix/include/intifada-$version/intifada
	+ configuration installation in  $prefix/etc/intifada-$version/intifada
	+ asterix functors implementation 
	+ dependant includes installation in  $prefix/lib/intifada-$version/intifada/include
	+ handle dynamic type recuperation (Data_Field::get_value(name)
		 It's possible to get and set values from string
	+ handle dynamic type loading. Types must be explicitily loaded because
	  when load occurs, a registration occured near. See intifada::Type_Repository
	  ,Integer.?xx and Configuration_Reader::register_types to see how it works.
	+ put internal types in initifada library. These types are registered one time
	  the first time the Type_Repository is used.
	+ protect Record_Repository::get_clone against unknow type
0.0.4->0.1.0
	+ change version numerotation
	+ simplify Type inherited hierarchy
	+ rename all string types they must exaclty reflect C++ types name
0.1.0->1.0.0-RC3
	+ firsts tests
1.0.0-RC3->1.0.0-RC4
	+ avoid physical copy of asterix record upon creation.
	+ insert asterix category of V.Malerba
1.0.5->1.0.6
	+ replace Stream::resize call by Stream::extend in Field_Specification_Data::set_frn
	  because with resize, fspec will be shrink if a frn nearest the begining is
	  set after a frn farther.
	+ cendl and cend log system suppression (use std::endl instead)
	+ add release_on_clear(bool) on Message and Block to avoid memory release of subsequent parts
	+ Block::clear() stop erase reference to record model