GTNPORTAL-3450: Impossible to upload file in Content Explorer when tmpdir does not exist

Fix description:
- When uploading a file, check if tmpdir exists. If not, create it
GTNPORTAL-3500 Remove the unreality testcase in multi-threading
GTNPORTAL-3486 Redirect to /sso instead of /login when SSO is enabled
GTNPORTAL-3490 Add missing i18n keys in Services Management gadget (3.7.x)
GTNPORTAL-3508: Imported applications are public by default

Fix description:
* When adding an application into a category, the access permission to this application is restricted to administrators group.
* The same default permission is applied to categories and applications imported in batch by clicking "Import Applications".
GTNPORTAL-3507: Update test case from PLIDM-46 to gatein-portal code base
Revert "GTNPORTAL-3507: Update test case from PLIDM-46 to gatein-portal code base"

This reverts commit 078b74b838bfa837056fa58d702019fb598625fa.
Picketlink IDM upgrade to 1.4.5.Final . Minor changes in some comments
Upgrade Shindig to version 2.0.2.Final-gatein-5
GTNPORTAL-3503 Define a default order for page management results
GTNPORTAL-3505 - Adjusted the XSL transformation to set wsdl-host to jbossws.undefined.host
GTNPORTAL-3494 Fix for side effect in App Registry import-all
GTNPORTAL-3509 Missing validator when importing applications
GTNPORTAL-3506 Allow multiple apps registering the very same AMD paths