XWiki is not deployed after installation of debian package on Ubuntu 12.04

After successful execution of commands according to http://platform.xwiki.org/xwiki/bin/view/AdminGuide/InstallationViaAPT choosing following variant:

sudo apt-get install xwiki-enterprise-tomcat7-mysql

I found that xwiki is not deployed on tomcat /var/lib/tomcat7/webapps folder.
Also noted that xwiki database is created and is empty (which probably is ok).

More info about environment:

1. uname -a
   Linux ip101 3.2.0-65-generic #99-Ubuntu SMP Fri Jul 4 21:03:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

1. lsb_release -a
   No LSB modules are available.
   Distributor ID: Ubuntu
   Description: Ubuntu 12.04.4 LTS
   Release: 12.04
   Codename: precise

1. apt-cache show tomcat7
   Package: tomcat7
   Priority: optional
   Section: universe/java
   Installed-Size: 349
   Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
   Original-Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
   Architecture: all
   Version: 7.0.26-1ubuntu1.2
   ...
2. apt-cache show xwiki-enterprise-tomcat7-mysql
   Package: xwiki-enterprise-tomcat7-mysql
   Version: 6.1
   Architecture: all
   Maintainer: XWiki Team (devs@xwiki.org)
   Installed-Size: 0
   Depends: xwiki-enterprise-common (= 6.1), xwiki-enterprise-tomcat-common (= 6.1), xwiki-enterprise-mysql-common (= 6.1), tomcat7
   Filename: releases/org/xwiki/enterprise/xwiki-enterprise-installer-debian-tomcat7-mysql/6.1/xwiki-enterprise-installer-debian-tomcat7-mysql-6.1.deb
   ...