Now using std=c99

- Include #define _POSIX_C_SOURCE in tegen.w, wp_test.w and wp_memory.w
- Remove referenes to <stdbool.h>, it's not used at this time
- Add WCOREDUMP macro if not defined (not in the POSIX spec)
- Remove extra # in wp_memory.w
- Misc. formatting
Build correction - Additional GCC options for ASM

- Add AM_CFLAGS=-WA,-aslh
- Add target tegen.c
- Update target wp_test.c, wp_memory.c, wp_test_tests.c,
  wp_memory_tests.c
- Add additional CLEANFILES
- Add -g -O2 to CFLAGS