Merge pull request #2320 from markshannon/fix-click-dependency-info

Update click dependency info.

setup.py

@@ -74,7 +74,7 @@ setup(
         'Werkzeug>=0.7',
         'Jinja2>=2.4',
         'itsdangerous>=0.21',
-        'click>=2.0',
+        'click>=4.0',
     ],
     classifiers=[
         'Development Status :: 4 - Beta',

tox.ini

@@ -1,8 +1,6 @@
 [tox]
 envlist = {py26,py27,pypy}-{lowest,release,devel}{,-simplejson}, {py33,py34,py35,py36}-{release,devel}{,-simplejson}
 
-
-
 [testenv]
 passenv = LANG
 usedevelop=true
@@ -20,12 +18,18 @@ deps=
     lowest: Werkzeug==0.7
     lowest: Jinja2==2.4
     lowest: itsdangerous==0.21
+    lowest: Click==4.0
     lowest: blinker==1.0
+
     release: blinker
+
     devel: git+https://github.com/pallets/werkzeug.git
+    devel: git+https://github.com/pallets/markupsafe.git
     devel: git+https://github.com/pallets/jinja.git
     devel: git+https://github.com/pallets/itsdangerous.git
+    devel: git+https://github.com/pallets/click.git
     devel: git+https://github.com/jek/blinker.git
+
     simplejson: simplejson
 
 [testenv:docs]