temporarily revert "easy workaround for the bug"

This reverts commit db35c6b.

Author: nyuichi

src/docker.rs

@@ -825,7 +825,7 @@ impl Docker {
         }
         let res =
             self.http_client()
-                .post(&headers, &format!("images/create?{}", param.finish()), "")?;
+                .post(&headers, &format!("/images/create?{}", param.finish()), "")?;
         if res.status.is_success() {
             Ok(Box::new(
                 BufReader::new(res)
@@ -1146,7 +1146,7 @@ impl Docker {
         }
 
         self.http_client()
-            .get(self.headers(), &format!("events?{}", param.finish()))
+            .get(self.headers(), &format!("/events?{}", param.finish()))
             .and_then(|res| {
                 Ok(Box::new(
                     serde_json::Deserializer::from_reader(res)