Bump version to 3.44.16 and update changelog

[skip ci]

Author: Travis CI User

RELEASE.rst

@@ -21,6 +21,21 @@ Hypothesis APIs come in three flavours:
 You should generally assume that an API is internal unless you have specific
 information to the contrary.
 
+--------------------
+3.44.16 - 2018-01-13
+--------------------
+
+This release improves test case reduction for recursive data structures.
+Hypothesis now guarantees that whenever a strategy calls itself recursively
+(usually this will happen because you are using :func:`~hypothesis.strategies.deferred`),
+any recursive call may replace the top level value. e.g. given a tree structure,
+Hypothesis will always try replacing it with a subtree.
+
+Additionally this introduces a new heuristic that may in some circumstances
+significantly speed up test case reduction - Hypothesis should be better at
+immediately replacing elements drawn inside another strategy with their minimal
+possible value.
+
 --------------------
 3.44.15 - 2018-01-13
 --------------------

docs/changes.rst

@@ -17,5 +17,5 @@
 
 from __future__ import division, print_function, absolute_import
 
-__version_info__ = (3, 44, 15)
+__version_info__ = (3, 44, 16)
 __version__ = '.'.join(map(str, __version_info__))