Merge branch 'version-bump-to-2018-5' into 'master'

Bump version for ProcessTimer.

See merge request !16

pytools/__init__.py

@@ -2087,6 +2087,8 @@ class ProcessTimer(object):
     .. attribute:: process_elapsed
 
         Only available in Python 3.3+.
+
+    .. versionadded:: 2018.5
     """
 
     def __init__(self):

pytools/version.py

-VERSION = (2018, 4)
+VERSION = (2018, 5)
 VERSION_STATUS = ""
 VERSION_TEXT = ".".join(str(x) for x in VERSION) + VERSION_STATUS