Code cleanup

-Replace tabs with double-spaces
-Betting spacing and lining up of code functions
-Add missing semi-colons
-Remove extra characters and spaces where applicable
-Remove commented-out code fragments
-Add missing 2021 date to LICENSE
-Small touchups and other misc nitpickings

lib/apis/coindesk.js

@@ -1,21 +1,23 @@
 var request = require('postman-request');
- 
+
 function get_usd_value(cb) {
-    request({ uri: 'https://api.coindesk.com/v1/bpi/currentprice/USD.json', json: true, headers: {'User-Agent': 'eiquidus'} }, function (error, response, body) {
-        if (error) {
-            return cb(error, 0);
-        } else {
-            return cb(null, body.bpi.USD['rate_float'].toFixed(4));
-        }
-    });
+  request({ uri: 'https://api.coindesk.com/v1/bpi/currentprice/USD.json', json: true, headers: {'User-Agent': 'eiquidus'} }, function (error, response, body) {
+    if (error)
+      return cb(error, 0);
+    else
+      return cb(null, body.bpi.USD['rate_float'].toFixed(4));
+  });
 }
 
 module.exports = {
-    get_data: function (cb) {
-        var error = null;
-		get_usd_value(function (err, last_usd) {
-			if (err) { error = err; }
-			return cb(error, last_usd);
-		});
-    }
+  get_data: function (cb) {
+    var error = null;
+
+    get_usd_value(function (err, last_usd) {
+      if (err)
+        error = err;
+
+      return cb(error, last_usd);
+    });
+  }
 };