Use gear Text interface

This makes the transition to python3 much smoother.

Change-Id: I9d8638dd98502bdd91cbe6caf3d94ce197f06c6f
Depends-On: If6bfc35d916cfb84d630af59f4fde4ccae5187d4
Depends-On: I93bfe33f898294f30a82c0a24a18a081f9752354
diff --git a/requirements.txt b/requirements.txt
index 2fe6963..9f20458 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@
 extras
 statsd>=1.0.0,<3.0
 voluptuous>=0.10.2
-gear>=0.5.7,<1.0.0
+gear>=0.9.0,<1.0.0
 apscheduler>=3.0
 PrettyTable>=0.6,<0.8
 babel>=1.0