bump CLJS
fix unification on relations
0.8.4
[maven-release-plugin] prepare release core.logic-0.8.4
[maven-release-plugin] prepare for next development iteration
docstring for nafc
Merge branch 'master' of github.com:clojure/core.logic
perf tweaks
another perf tweak, 500-600ms shaved off zebrao benchmark on MBA
1.7ghz.

bump deps in project.clj
integrate pldb
remove references to ObjMap, we don't nil MZero cases anymore we have Fail
perf tweaks, ~10.7-8ms now for zebra on MBA 1.7ghz
remove old defrel
bump CLJS dep
specify clojurescript as provided dep in the pom
[maven-release-plugin] prepare release core.logic-0.8.5
[maven-release-plugin] prepare for next development iteration
0.8.4 -> 0.8.5
Merge branch 'master' of github.com:clojure/core.logic
wip progress, only a half solution, doesn't seem correct yet - x should
be bound to y