no more transact!s in tests

gistfile1.txt

diff --git a/src/hermes/vertex.clj b/src/hermes/vertex.clj
index 00920e4..111dc29 100644
--- a/src/hermes/vertex.clj
+++ b/src/hermes/vertex.clj
@@ -9,7 +9,7 @@
   "Create a vertex, optionally with the given property map."
   ([] (create! {}))
   ([data]
-     (set-properties! (.addVertex *graph*) data)))
+     (set-properties! (.addVertex *graph* nil) data)))
 
 (defn get-by-id [& ids]
   "Retrieves nodes by id from the graph."
diff --git a/test/hermes/vertex_test.clj b/test/hermes/vertex_test.clj
index ae40842..73e3136 100644
--- a/test/hermes/vertex_test.clj
+++ b/test/hermes/vertex_test.clj
@@ -65,18 +65,17 @@
 
 (deftest test-find-by-kv-backed-by-hbase
   (g/open conf)
-  (g/transact! (t/create-vertex-key-once :age Long {:indexed true}))
-  (g/transact!
-   (let [v1 (v/create! {:age  1
-                        :name "A"})
-         v2 (v/create! {:age 2
-                        :name "B"})
-         v3 (v/create! {:age 2
-                        :name "C"})]
-     (is (= #{"A"}
-            (set (map #(v/get-property % :name) (v/find-by-kv :age 1)))))
-     (is (= #{"B" "C"}
-            (set (map #(v/get-property % :name) (v/find-by-kv :age 2))))))))
+  (t/create-vertex-key-once :age Long {:indexed true})
+  (let [v1 (v/create! {:age  1
+                       :name "A"})
+        v2 (v/create! {:age 2
+                       :name "B"})
+        v3 (v/create! {:age 2
+                       :name "C"})]
+    (is (= #{"A"}
+           (set (map #(v/get-property % :name) (v/find-by-kv :age 1)))))
+    (is (= #{"B" "C"}
+           (set (map #(v/get-property % :name) (v/find-by-kv :age 2)))))))
 
 (deftest test-upsert!
   (g/open)
@@ -100,8 +99,8 @@
 
 (deftest test-upsert!-backed-by-hbase
   (g/open conf)
-  (g/transact! (t/create-vertex-key-once :first-name String {:indexed true})
-               (t/create-vertex-key-once :last-name String {:indexed true}))  
+  (t/create-vertex-key-once :first-name String {:indexed true})
+  (t/create-vertex-key-once :last-name String {:indexed true})
   (let [v1-a (v/upsert! :first-name
                         {:first-name "Zack" :last-name "Maril" :test 0})
         v1-b (v/upsert! :first-name