[maven-release-plugin] prepare release 3.8.2.Final
[maven-release-plugin] prepare for next development iteration
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
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