Merge pull request #56 from richpsharp/release/0.11.0

fixes #55 updating history

Author: dcdenu4

HISTORY.rst

@@ -4,8 +4,8 @@
 TaskGraph Release History
 =========================
 
-Unreleased Changes
-------------------
+0.10.3 (2021-01-29)
+-------------------
 * Fixed issue that could cause combinatorial memory usage leading to poor
   runtime or ``MemoryError`` if a dictionary were passed that had thousands
   of elements.