Use WLED_RELEASE_NAME to generate bin names and show the name in update

Package.json: set version to mmod numbering
platformio.ini: refactor mmod entries using extend and WLED_RELEASE_NAME
update.htm: change to installed bin
wled.h: add releaseString
xml.cpp: set bin name

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wled",
-  "version": "0.14.0-mdev",
+  "version": "0.14.0.1.1-mmod",
   "description": "Tools for WLED project",
   "main": "tools/cdata.js",
   "directories": {