Add job show route

[qianyuanzhu]

Because index and show page share build_ganglia_link and has_ganglia functions, so I moved them from index.html.erb to application.js.

function build_ganglia_link( host, start_seconds, report_type, node_num, size ) {   
        var ganglia_uri;    
        <% OODClusters.each do |c| %>   
        if (host == '<%= c.id.to_s %>') {   
            <% if c.custom_allow?(:ganglia) %>  
              <% ganglia_cluster = OodCluster::Servers::Ganglia.new(c.custom_config(:ganglia)) %>   
              var ganglia_base = '<%= ganglia_cluster.uri.to_s %>'; 
              ganglia_uri = ganglia_base+'&z='+size+'&cs='+start_seconds+'&g='+report_type+'&h=<%= (ganglia_cluster.opt_query.fetch(:h, '') % {h: '\'+node_num+\''}).html_safe %>'; 
            <% else %>  
              ganglia_uri = '<%= image_path('unavailable.png') %>'; 
            <% end %>   
        }   
        <% end %>   
        return ganglia_uri; 
    }   
     function has_ganglia(host) {   
        <% OODClusters.each do |c| %>   
        if (host == '<%= c.id.to_s %>') {   
            <% if c.custom_allow?(:ganglia) %>  
                return true;    
            <% end %>   
        }   
        <% end %>   
        return false;   
    }

Index page:

• Add a link to the job id in the panel header

Individual show page:

• Add Queue after the job id in the panel header
• Add back to index page button at the end of job information
• The route is /:cluster/:pbsid i.e.https://ondemand-test.osc.edu/pun/dev/Active_jobs/owens/3542123.owens-batch.ten.osc.edu

close #160