Upgrade certifi dependencies

Get more up-to-date root certs. This was blocked for a while because
certifi wouldn't build on windows, but this is now fixed, with minimal
changes to the use case -- only a small change in the bootstrap script
is required.

The new certifi lib is also a few megabytes lighter than before, which
is good for rebar3.

bootstrap

@@ -16,7 +16,7 @@ main(_) ->
                ,{getopt, []}
                ,{cf, []}
                ,{erlware_commons, ["ec_dictionary.erl", "ec_vsn.erl"]}
-               ,{certifi, []}],
+               ,{certifi, ["certifi_pt.erl"]}],
     Deps = get_deps(),
     [fetch_and_compile(Dep, Deps) || Dep <- BaseDeps],
 

rebar.config

@@ -3,7 +3,7 @@
 
 {deps, [{erlware_commons,     "1.0.0"},
         {ssl_verify_fun,      "1.1.1"},
-        {certifi,             "0.4.0"},
+        {certifi,             "2.0.0"},
         {providers,           "1.6.0"},
         {getopt,              "0.8.2"},
         {bbmustache,          "1.3.0"},

rebar.lock

@@ -1,6 +1,6 @@
 {"1.1.0",
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.3.0">>},0},
- {<<"certifi">>,{pkg,<<"certifi">>,<<"0.4.0">>},0},
+ {<<"certifi">>,{pkg,<<"certifi">>,<<"2.0.0">>},0},
  {<<"cf">>,{pkg,<<"cf">>,<<"0.2.2">>},0},
  {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.2.6">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.0.0">>},0},
@@ -12,7 +12,7 @@
 [
 {pkg_hash,[
  {<<"bbmustache">>, <<"2010ADAE78830992A4C69680115ECD7D475DD03A72C076BBADDCCBF2D4B32035">>},
- {<<"certifi">>, <<"A7966EFB868B179023618D29A407548F70C52466BF1849B9E8EBD0E34B7EA11F">>},
+ {<<"certifi">>, <<"A0C0E475107135F76B8C1D5BC7EFB33CD3815CB3CF3DEA7AEFDD174DABEAD064">>},
  {<<"cf">>, <<"7F2913FFF90ABCABD0F489896CFEB0B0674F6C8DF6C10B17A83175448029896C">>},
  {<<"cth_readable">>, <<"D3DADD65A639F5A54F4F20B9F8D1DB6AD38E3D9FEB836A4A1E29590246D6C860">>},
  {<<"erlware_commons">>, <<"087467DE5833C0BB5B3CCDD387F9E9C1FB816A75B7A709629BF24B5ED3246C51">>},