[DRE-maint] Bug#575462: redmine + apache2 shows permission error to access /etc/redmine/default/session.yml

[Jinserk Baik]

Package: redmine
Version: 0.9.3-1

I have tried to install redmine with debian package and its dependencies,
I just add the following redmine site in /etc/apache2/site-available

Listen 8080
<VirtualHost *:8080>
  RailsEnv production
  RailsBaseURI /
  SetEnv X_DEBIAN_SITEID default

  DocumentRoot /usr/share/redmine/public
  ServerSignature off

  <Directory "/usr/share/redmine/public">
    AllowOverride None
    Order allow,deny
    Allow from all
  </Directory>

  ErrorLog /var/log/apache2/redmine-error.log
  CustomLog /var/log/apache2/redmine-access.log combined
</VirtualHost>

and a2ensite redmine

then I can see the passenger running page on IP:8080 but got an error like:

Error message:Permission denied - /etc/redmine/default/session.yml
Exception class:Errno::EACCES
Application root: /usr/share/redmine
Backtrace:
# File Line Location
0 /usr/lib/ruby/1.8/yaml.rb 143 in `initialize'
1 /usr/lib/ruby/1.8/yaml.rb 143 in `open'
2 /usr/lib/ruby/1.8/yaml.rb 143 in `load_file'
3 /usr/share/redmine/config/environment.rb 27
4 /usr/lib/ruby/1.8/rubygems/custom_require.rb 31 in `gem_original_require'
5 /usr/lib/ruby/1.8/rubygems/custom_require.rb 31 in `require'
..... blah blah

It seems that the original permission of /etc/redmine/default/*.yml is
root:www-data, and 640, so the apache2 blocks the access of these files.

How can I fix it?