Add new "last updated date" settings

-Added new configurable settings to allow displaying a "last updated date" timestamp for: index, reward, masternode, movement, network, richlist and market pages
-Affected pages are now configured to be completely hidden and disabled when their display settings are set to false

lib/settings.js

@@ -140,12 +140,50 @@ exports.movement = {
 
 //index
 exports.index = {
+  // show_last_updated: determine whether to show a label above the transaction data with the last updated date
+  "show_last_updated": true,
   "show_hashrate": false,
   "difficulty": "POS",
   "last_txs": 100,
   "txs_per_page": 10
 };
 
+// reward page
+exports.reward_page = {
+  // show_last_updated: determine whether to show a label above the reward data with the last updated date
+  "show_last_updated": true
+};
+
+// masternodes page
+exports.masternodes_page = {
+  // show_last_updated: determine whether to show a label above the masternode data with the last updated date
+  "show_last_updated": true
+};
+
+// movement page
+exports.movement_page = {
+  // show_last_updated: determine whether to show a label above the movement data with the last updated date
+  "show_last_updated": true
+};
+
+// network page
+exports.network_page = {
+  // show_last_updated: determine whether to show a label above the network data with the last updated date
+  "show_last_updated": true
+};
+
+// richlist page
+exports.richlist_page = {
+  // show_last_updated: determine whether to show a label above the richlist data with the last updated date
+  "show_last_updated": true
+};
+
+// markets page
+exports.markets_page = {
+  // show_last_updated: determine whether to show a label above the market data with the last updated date
+  "show_last_updated": true
+};
+
 // twitter, facebook, googleplus, bitcointalk, github, slack, discord, telegram, reddit, youtube, website
 exports.twitter = "your-twitter-username";
 exports.facebook = "your-facebook-username";