Various minor bugs and improvements :

ast-core : 
 - Fix a bug in NodeInputStream
 - Add support to specify the base node class used by  AST node classes generated by the XMLNodeFactory.

fractal-adl :
 - Fix bug in FractalADLLogManager for the handling of log files.

maven-fractaladl-plugin :
 - Fix integration tests to be compatible with maven 2.1