src/main.c: Use getopt_long() instead an own implementation
src/os_unix.c: akl_add_error() -> akl_raise_error() and other refinements
src/module.c: Make better error management and implement a small dependency management
src/aklisp.c: Fix stack handling
src/parser.c: Add some assembly parsing procedures
src/lib.c: Fix library functions
src/compile.c: Add main function to akl_state