Updated npm packages to latest version

Remove blockcount check for regtest
FIX
FIX: change default ln invoice expiry hour -> day
REF
FIX: added some caching; skip checking old invoices
Update README.md

package.json

@@ -1,6 +1,6 @@
 {
   "name": "LndHub",
-  "version": "1.1.1",
+  "version": "1.1.3",
   "description": "",
   "main": "index.js",
   "scripts": {