new: usr: only support ssl content for security reason
new: usr: add ssl certificate generation script alternative use mdata
new: dev: create ssl folder for nginx
new: usr: create extra user for django / nagiosadmin login
new: usr: create extra admin user and add readme file

- user called admin and mdata is munin_admin
- readme file which some base details
new: version update to 14.2.1
new: doc: update and rename readme file @minor
Merge remote-tracking branch 'motu81/master'