added warnings for useless variables (at verbose level 1) - exact definition of 'useless' may be further refined - display could certainly be improved
clean handling of undefined node application
Changed the load of lusi files: imported nodes or function can specify the linking lib and/or use a classical C prototype (without pointers).Parse updated as well as Makefile generation.
answer to #feature 50: - arrows are now factorized out and become part of include as files arrow.h and arrow.c - no more arrows in generated code - compiling and linking arrow.c is only necessary in case of dynamic allocation - version now includes installation prefix (for the standard lib)...
Improvements as suggested by e. Noulard: better install of include; modified generated makefile
Moved files to trunk in lustre_compiler