0.9.8.3:

0.9.8.3:
	Make EQUAL faster (about 50% improvement for short lists on x86-64).
        As amazing as it might seem, there are actually real-world
        applications where significant time is spent in EQUAL.

        * Inline EQL in EQUAL
        * Rearrange things a bit to enable the inlining
        * Rewrite EQUAL to use a local helper function