Updated bbb version to 2.3

Author: juanluisbaptiste

README.md

@@ -7,7 +7,7 @@ The role follows _BigBlueButton_ official [installation instructions](http://doc
 Forked from [softwaremill/ansible-bigbluebutton](https://github.com/softwaremill/ansible-bigbluebutton), as it seems abandoned. Itr has the following additional features:
 
 ## Features
-  * Installs latest stable version (currently _2.2_).
+  * Installs latest stable version (currently _2.3_).
   * Installation behind a firewall (NAT setup support)
   * Automatic SSL configuration using _LetsEncrypt_ certificates using [thefinn93/ansible-letsencrypt](https://github.com/thefinn93/ansible-letsencrypt) role.
   * Optionally installs the demo and check packages.

defaults/main.yml

@@ -1,6 +1,6 @@
 ---
-bbb_apt_repo_url: 'https://ubuntu.bigbluebutton.org/xenial-220/'
-bbb_ubuntu_version: "16.04"
+bbb_apt_repo_url: 'https://ubuntu.bigbluebutton.org/bionic-230/'
+bbb_ubuntu_version: "18.04"
 bbb_install_html5: True
 bbb_install_playback_notes: True
 bbb_install_playback_podcast: True