GTNPORTAL-3228: Change Language Selector changes to default language on save

Fix description:
* When there is no change of the selected language in Language Selector, there is no need to update user locale.
GTNPORTAL-3366: [IE8, IE9] Can not rename Dashboard tab if name contains accent chars

Fix description:
	- Encode current name before invoking rename action
GTNPORTAL-3300 Add possibility to invalidate items in IntegrationCache via JMX call to PicketlinkIDMCacheService.invalidate()