Clean up the code, update dependencies and use rust 2018 idioms

Signed-off-by: VanillaBrooks <brooks@karlik.org>

Cargo.toml

@@ -5,21 +5,23 @@ version = "0.1.0"
 edition = "2018"
 
 [dependencies]
-clap = "2.32.0"
+clap = "2.33.1"
 futures = "0.1.25"
-httparse = "1.3.3"
-lazy_static = "1.2.0"
-native-tls = "0.2.2"
+futures3 = {version="0.3.5", package="futures", features=["compat"]}
+httparse = "1.3.4"
+lazy_static = "1.4.0"
+native-tls = "0.2.4"
 netbuf = "0.4.1"
+# TODO: upgrate to 2.1.3
 pest = "0.4.0"
-quick-error = "1.2.2"
+quick-error = "1.2.3"
+# TODO: upgrade to 0.7.3
 rand = "0.3.14"
-regex = "1.1.0"
-serde = "1.0.87"
-serde_derive = "1.0.87"
-serde_json = "1.0.38"
-slog = "2.4.1"
-slog-async = "2.3.0"
+regex = "1.3.9"
+serde = {version="1.0.111", features=["derive"]}
+serde_json = "1.0.53"
+slog = "2.5.2"
+slog-async = "2.5.0"
 slog-term = "2.4.0"
 tokio-core = "0.1.0"
 tokio-dns-unofficial = "0.1.0"

rustfmt.toml

@@ -1,8 +1,2 @@
-write_mode = "Overwrite"
-fn_arg_indent = "Tabbed"
-fn_args_layout = "Block"
-where_pred_indent = "Visual"
-where_indent = "Visual"
-fn_return_indent = "WithWhereClause"
+fn_args_layout = "Tall"
 reorder_imports = true
-reorder_imported_names = true