Split out peer cmds into new functions

-Add new setting for getpeerinfo cmd
-getpeerinfo api call moved to explorer.js
-Peer geo location api call moved to explorer.js

lib/nodeapi.js

@@ -40,6 +40,7 @@ module.exports = function(){
         case 'getrawtransaction':
         case 'getsupply':
         case 'getinfo':
+        case 'getpeerinfo':
         case 'gettxoutsetinfo':
         case 'getmaxmoney':
         case 'getmaxvote':
@@ -126,6 +127,7 @@ module.exports = function(){
         case 'getblockcount':
         case 'getsupply':
         case 'getinfo':
+        case 'getpeerinfo':
         case 'gettxoutsetinfo':
         case 'getmaxmoney':
         case 'getmaxvote':