Merge remote-tracking branch 'upstream/master' into develop

requirements.txt

@@ -3,14 +3,14 @@ appdirs==1.4.3
 certifi==2018.4.16
 chardet==3.0.4
 colorama==0.3.9
-fs==2.0.25
+fs==2.0.26
 graphviz==0.8.4
 idna==2.7
 jinja2==2.10
 markupsafe==1.0
 mondrian==0.7.0
 packaging==17.1
-pbr==4.1.1
+pbr==4.2.0
 psutil==5.4.6
 pyparsing==2.2.0
 python-slugify==1.2.5
@@ -18,6 +18,7 @@ pytz==2018.5
 requests==2.19.1
 six==1.11.0
 stevedore==1.29.0
+typing==3.6.4
 unidecode==1.0.22
 urllib3==1.23
 whistle==1.0.1