up to kvs 3.9

rebar.config

@@ -3,7 +3,7 @@
 {deps, [
     {nitro,         ".*", {git, "git://github.com/synrc/nitro",             {tag,"1.4"}}},
     {n2o,           ".*", {git, "git://github.com/synrc/n2o",               {tag,"3.4"}}},
-    {kvs,           ".*", {git, "git://github.com/synrc/kvs",               {tag,"3.4"}}},
+    {kvs,           ".*", {git, "git://github.com/synrc/kvs",               {tag,"3.9"}}},
     {erlydtl,       ".*", {git, "git://github.com/evanmiller/erlydtl.git",  {tag,"0.8.0"}}},
     {oauth,         ".*", {git, "git://github.com/tim/erlang-oauth",        {tag, "v1.6.0"}}}
 ]}.