Merge ~cjwatson/launchpad:simpletal-5.2 into launchpad:master

[Colin Watson]

Upgrade to SimpleTAL 5.2 on Python 3

Python 2 remains on SimpleTAL 4.3; there's no bilingual version.

Dependencies MP: https://code.launchpad.net/~cjwatson/lp-source-dependencies/+git/lp-source-dependencies/+merge/386709

[Tom Wardill (twom)]

review: Approve

diff --git a/constraints.txt b/constraints.txt
index e7ddbe9..bf65925 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -295,7 +295,8 @@ setproctitle==1.1.7
 setuptools-git==1.2
 setuptools-scm==3.4.3
 simplejson==3.8.2
-SimpleTAL==4.3
+SimpleTAL==4.3; python_version < "3"
+SimpleTAL==5.2; python_version >= "3"
 soupmatchers==0.4
 soupsieve==1.9
 # lp:~launchpad-committers/storm/lp