AVZ should depend only from KVS CORE

rebar.config

@@ -1,7 +1,7 @@
 {deps_dir, ["deps"]}.
 {deps, [
     {n2o,           ".*", {git, "git://github.com/5HT/n2o.git", "HEAD"}},
-    {kvs,           ".*", {git, "git://github.com/synrc/kvs.git", "HEAD"}},
+    {kvs,           ".*", {git, "git://github.com/synrc/kvs_core.git", "HEAD"}},
     {oauth,         ".*", {git, "git://github.com/doxtop/erlang-oauth.git", "HEAD"}},
     {erlydtl,       ".*", {git,"git://github.com/evanmiller/erlydtl.git","HEAD"}}
 ]}.