Update version

Author: vitaut

ChangeLog.rst

@@ -1,5 +1,5 @@
-7.1.0 - TBD
------------
+7.1.0 - 2020-10-25
+------------------
 
 * Switched from `Grisu3
   <https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf>`_

doc/build.py

@@ -6,7 +6,7 @@
 from subprocess import check_call, check_output, CalledProcessError, Popen, PIPE
 from distutils.version import LooseVersion
 
-versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0', '6.2.1', '7.0.0', '7.0.1', '7.0.2', '7.0.3']
+versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0', '6.2.1', '7.0.0', '7.0.1', '7.0.2', '7.0.3', '7.1.0']
 
 def pip_install(package, commit=None, **kwargs):
   "Install package using pip."