Pull updated xmpp

mix.exs

@@ -144,7 +144,7 @@ defmodule Ejabberd.MixProject do
      {:p1_utils, "~> 1.0"},
      {:pkix, "~> 1.0"},
      {:stringprep, ">= 1.0.26"},
-     {:xmpp, git: "https://github.com/processone/xmpp", ref: "855d974e122c8357d94c983b85342112c5f5531f", override: true},
+     {:xmpp, git: "https://github.com/processone/xmpp", ref: "8071c86f33b9a8e9d66a10e058be088eecdc670b", override: true},
      {:yconf, git: "https://github.com/processone/yconf.git", ref: "9898754f16cbd4585a1c2061d72fa441ecb2e938", override: true}]
     ++ cond_deps()
   end

mix.lock

@@ -34,6 +34,6 @@
   "stringprep": {:hex, :stringprep, "1.0.30", "46cf0ff631b3e7328f61f20b454d59428d87738f25d709798b5dcbb9b83c23f1", [:rebar3], [{:p1_utils, "1.0.26", [hex: :p1_utils, repo: "hexpm", optional: false]}], "hexpm", "f6fc9b3384a03877830f89b2f38580caf3f4a27448a4a333d6a8c3975c220b9a"},
   "stun": {:hex, :stun, "1.2.15", "eec510af6509201ff97f1f2c87b7977c833bf29c04e985383370ec21f04e4ccf", [:rebar3], [{:fast_tls, "1.1.22", [hex: :fast_tls, repo: "hexpm", optional: false]}, {:p1_utils, "1.0.26", [hex: :p1_utils, repo: "hexpm", optional: false]}], "hexpm", "f6d8a541a29fd13f2ce658b676c0cc661262b96e045b52def1644b75ebc0edef"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
-  "xmpp": {:git, "https://github.com/processone/xmpp", "855d974e122c8357d94c983b85342112c5f5531f", [ref: "855d974e122c8357d94c983b85342112c5f5531f"]},
+  "xmpp": {:git, "https://github.com/processone/xmpp", "8071c86f33b9a8e9d66a10e058be088eecdc670b", [ref: "8071c86f33b9a8e9d66a10e058be088eecdc670b"]},
   "yconf": {:git, "https://github.com/processone/yconf.git", "9898754f16cbd4585a1c2061d72fa441ecb2e938", [ref: "9898754f16cbd4585a1c2061d72fa441ecb2e938"]},
 }

rebar.config

@@ -77,7 +77,7 @@
         {stringprep, "~> 1.0.29", {git, "https://github.com/processone/stringprep", {tag, "1.0.30"}}},
         {if_var_true, stun,
          {stun, "~> 1.2.12", {git, "https://github.com/processone/stun", {tag, "1.2.15"}}}},
-        {xmpp, "~> 1.9.0", {git, "https://github.com/processone/xmpp", "855d974e122c8357d94c983b85342112c5f5531f"}},
+        {xmpp, "~> 1.9.0", {git, "https://github.com/processone/xmpp", "8071c86f33b9a8e9d66a10e058be088eecdc670b"}},
         {yconf, ".*", {git, "https://github.com/processone/yconf", "9898754f16cbd4585a1c2061d72fa441ecb2e938"}}
        ]}.
 

rebar.lock

@@ -26,7 +26,7 @@
  {<<"unicode_util_compat">>,{pkg,<<"unicode_util_compat">>,<<"0.7.0">>},1},
  {<<"xmpp">>,
   {git,"https://github.com/processone/xmpp",
-       {ref,"855d974e122c8357d94c983b85342112c5f5531f"}},
+       {ref,"8071c86f33b9a8e9d66a10e058be088eecdc670b"}},
   0},
  {<<"yconf">>,
   {git,"https://github.com/processone/yconf",