Rewrite FIND using SATISFIES-TEST-P
Rewrite POSITION using SATISFIES-TEST-P and add missing export
Rewrite REMOVE using SATISFIES-TEST-P
Tests for modified sequence functions
Add TEST-NOT keyword argument to TREE-EQUAL
Rewrite MEMBER using SATISFIES-TEST-P
Rewrite ASSOC using SATISFIES-TEST-P
Rewrite RASSOC using SATISFIES-TEST-P
Merge branch 'satisfies' of https://github.com/orodley/jscl into satisfies-test

Conflicts:
	src/toplevel.lisp