Add a "nested deep tree" benchmark (#20)

* Fix deeptree counter logic

* Copy deeptree to deeptree-nested

* Delete a bunch of dead files

* Fill out the deeptree-nested benchmark

* Add v7-beta.0 build

Author: markerikson

react-redux-versions/react-redux-7.0.0-beta.0.min.js

@@ -0,0 +1,21 @@
+# See https://help.github.com/ignore-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*