Require gevent>=1.0.2 to be able to test on 1.1b1

Author: sylvinus

requirements-base.txt

@@ -1,11 +1,11 @@
 argparse>=1.1
 redis>=2.10.3
 pymongo>=3.0.1
-gevent==1.0.2
+gevent>=1.0.2
 ujson==1.33
 hiredis>=0.1.5
 psutil==1.2.1
 supervisor==3.0
 subprocess32==3.2.5
 objgraph==1.8.1
-termcolor==1.1.0
+termcolor==1.1.0