Add decoding/encoding for extended gossip topics. Correct logging CLI

beacon_node/src/main.rs

@@ -9,7 +9,6 @@ use std::fs;
 use std::path::PathBuf;
 
 pub const DEFAULT_DATA_DIR: &str = ".lighthouse";
-
 pub const CLIENT_CONFIG_FILENAME: &str = "beacon-node.toml";
 pub const ETH2_CONFIG_FILENAME: &str = "eth2-spec.toml";
 pub const TESTNET_CONFIG_FILENAME: &str = "testnet.toml";
@@ -214,14 +213,7 @@ fn main() {
                 .help("The title of the spec constants for chain config.")
                 .takes_value(true)
                 .possible_values(&["info", "debug", "trace", "warn", "error", "crit"])
-                .default_value("trace"),
-        )
-        .arg(
-            Arg::with_name("verbosity")
-                .short("v")
-                .multiple(true)
-                .help("Sets the verbosity level")
-                .takes_value(true),
+                .default_value("info"),
         )
         .get_matches();
 
@@ -241,13 +233,6 @@ fn main() {
         _ => unreachable!("guarded by clap"),
     };
 
-    let drain = match matches.occurrences_of("verbosity") {
-        0 => drain.filter_level(Level::Info),
-        1 => drain.filter_level(Level::Debug),
-        2 => drain.filter_level(Level::Trace),
-        _ => drain.filter_level(Level::Trace),
-    };
-
     let mut log = slog::Logger::root(drain.fuse(), o!());
 
     let data_dir = match matches