* libanjuta/interfaces/libanjuta.idl,
	libanjuta/anjuta-plugin-manager.c,
	libanjuta/anjuta-plugin-manager.h,
	libanjuta/anjuta-c-plugin-factory.c,
	libanjuta/anjuta-c-module.h,
	libanjuta/anjuta-c-module.c:
	Report detailled error message in case of plugin loading failure

svn path=/trunk/; revision=3249