Added hook :view_repositories_show_contextual to allow adding items to the

repository's contextual menu.

  #2073


git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@1948 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/repositories/show.rhtml

 <div class="contextual">
+<%= call_hook(:view_repositories_show_contextual, { :repository => @repository, :project => @project }) %>
 <%= link_to l(:label_statistics), {:action => 'stats', :id => @project}, :class => 'icon icon-stats' %>
 
 <% if !@entries.nil? && authorize_for('repositories', 'browse') -%>