Fix bug.

lib/tasks/delete_site.rake

@@ -20,6 +20,11 @@ namespace :create_site do
       end
       Net::SSH.start(ip , user , password: password) do |ssh|
         @site_construct.update!(:infos=>[])
+        if @site_construct.status != "closed"
+          update_infos("Closing site #{@site_construct.site_name}...")
+        end
+        exec_ssh_command_by_sudo(ssh,"kill -s TERM `cat tmp/pids/unicorn.pid`")
+        exec_ssh_command_by_sudo(ssh,"kill -s TERM `fuser tmp/unicorn.sock`")
         update_infos("deleting database for #{@site_construct.site_name}")
         db_name = exec_ssh_command_by_sudo(ssh,"echo `cat #{@site_construct.path}/#{@site_construct.get_site_name}/config/mongoid.yml | grep 'database'`").split("database:").last.strip
         exec_ssh_command_by_sudo(ssh,"bash -l -c 'echo \"db.dropDatabase()\" | mongo --shell \'#{db_name}\''")