add keys to hystrix key set

mtkp · mtkp · commit 81be013e12bb · 2016-02-15T14:16:32.000-08:00
diff --git a/src/clj_http_hystrix/core.clj b/src/clj_http_hystrix/core.clj
@@ -20,6 +20,9 @@
     :hystrix/threads
     :hystrix/queue-size
     :hystrix/timeout-ms
+    :hystrix/breaker-request-volume
+    :hystrix/breaker-error-percent
+    :hystrix/breaker-sleep-window-ms
     :hystrix/bad-request-pred})
 
 (defn default-fallback [req resp]
