Reworked the "Market Cap" top panel feature

-Added a new setting for "marketcappnl" which shows a "Market Cap" top panel box
-Removed "show_market_cap" and "show_market_cap_over_price" settings

lib/settings.js

@@ -99,7 +99,8 @@ exports.display = {
   "difficultypnl": 2,
   "masternodespnl": 3,
   "coinsupplypnl": 4,
-  "pricepnl": 5
+  "pricepnl": 5,
+  "marketcappnl": 0
 };
 
 //API view
@@ -136,8 +137,6 @@ exports.movement = {
 //index
 exports.index = {
   "show_hashrate": false,
-  "show_market_cap": false,
-  "show_market_cap_over_price": false,
   "difficulty": "POS",
   "last_txs": 100,
   "txs_per_page": 10