BUG 9814 Proposal pivot skin: UNDER CONSTRUCTION

PROBLEM  There is not a page to show up if PM is under updating.
SOLUTION Add a page to be displayed only if PM is updating.

workflow/engine/bin/tasks/cliUpgrade.php

@@ -64,6 +64,9 @@ function run_upgrade($command, $args)
 {
     CLI::logging("UPGRADE", PROCESSMAKER_PATH . "upgrade.log");
     CLI::logging("Checking files integrity...\n");
+    //setting flag to true to check into sysGeneric.php
+    $flag = G::isPMUnderUpdating(1);
+    //start to upgrade
     $checksum = System::verifyChecksum();
     if ($checksum === false) {
         CLI::logging(CLI::error("checksum.txt not found, integrity check is not possible") . "\n");
@@ -117,5 +120,7 @@ function run_upgrade($command, $args)
     } else {
         CLI::logging("Upgrade successful\n");
     }
+    //setting flag to false
+    $flag = G::isPMUnderUpdating(0);
 }