upgrade providers, new version gives error message for bad provider dep

rebar.config

@@ -3,7 +3,7 @@
 
 {deps, [{erlware_commons, "0.15.0"},
         {ssl_verify_hostname, "1.0.5"},
-        {providers,       "1.4.1"},
+        {providers,       "1.5.0"},
         {getopt,          "0.8.2"},
         {bbmustache,      "1.0.4"},
         {relx,            "3.5.0"}]}.

rebar.lock

@@ -1,6 +1,6 @@
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.0.4">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"0.15.0">>},0},
  {<<"getopt">>,{pkg,<<"getopt">>,<<"0.8.2">>},0},
- {<<"providers">>,{pkg,<<"providers">>,<<"1.4.1">>},0},
+ {<<"providers">>,{pkg,<<"providers">>,<<"1.5.0">>},0},
  {<<"relx">>,{pkg,<<"relx">>,<<"3.5.0">>},0},
  {<<"ssl_verify_hostname">>,{pkg,<<"ssl_verify_hostname">>,<<"1.0.5">>},0}].