Bump to v3.8.0.

internal/baseIsEqual.js

@@ -16,8 +16,7 @@ import baseIsEqualDeep from './baseIsEqualDeep';
 function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
   // Exit early for identical values.
   if (value === other) {
-    // Treat `+0` vs. `-0` as not equal.
-    return value !== 0 || (1 / value == 1 / other);
+    return true;
   }
   var valType = typeof value,
       othType = typeof other;