Merge branch 'master' of github.com:thingsboard/thingsboard

@@ -20,5 +20,7 @@ ADD run-application.sh /run-application.sh
 ADD thingsboard.deb /thingsboard.deb
 
 RUN apt-get update \
-        && apt-get install -y nmap \
+        && apt-get install --no-install-recommends -y nmap \
+        && apt-get clean \
+        && rm -r /var/lib/apt/lists/* \
         && chmod +x /run-application.sh

 {
   "name": "thingsboard",
   "private": true,
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "Thingsboard UI",
   "licenses": [
     {