Merge pull request #631 from cmcaine/patch-1

Base.IntSet -> Base.BitSet

Author: oxinabox

docs/src/intset.md

@@ -1,6 +1,6 @@
 # DataStructures.IntSet
 
-`DataStructures.IntSet` is a drop-in replacement for the Base `IntSet`
+`DataStructures.IntSet` is a drop-in replacement for the Base `BitSet`
 type. It efficiently stores dense collections of small non-negative
 `Int`s as a sorted set. The constructor `IntSet([itr])` constructs a
 sorted set of the integers generated by the given iterable object, or an