add wrapper function for /txs endpoint

static/admin/lib/api-wrapper.js

@@ -156,6 +156,14 @@ const lib_api = {
     )
   },
 
+  /**
+   * Transactions
+   */
+  getTransactions: function(arguments) {
+    let uri = this.baseUri + '/txs'
+    return this.sendGetUriEncoded(uri, arguments)
+  },
+
   /**
    * Rescans a range of blocks
    */