Add eventlet to base requirements (#2264)

Conflicts:
	requirements_all.txt
	setup.py

requirements_all.txt

@@ -6,6 +6,7 @@ pip>=7.0.0
 jinja2>=2.8
 voluptuous==0.8.9
 webcolors==1.5
+eventlet==0.19.0
 
 # homeassistant.components.isy994
 PyISY==1.0.6

setup.py

@@ -18,6 +18,7 @@ REQUIRES = [
     'jinja2>=2.8',
     'voluptuous==0.8.9',
     'webcolors==1.5',
+    'eventlet==0.19.0',
 ]
 
 setup(