D-Net

[Authorization-library | Redis]: Redis integration completed

[Authorization library: Creating branch for redis integration]

Commented out the OA policies since we don't have numbers for those at the moment

Fixed the stats tool URL for production and temporary fix for the dev stats tool

Beta flag only on beta environment

Added the observatory specific favicon

Created different configuration env file for beta

RCUK: this rule goes to production.
More precision for dateAccepted.
Set DE country for TextGrid
Fix namespacePrefix for some generated elements: datacite prefix, not oai
Fixed FWF variable for project links
Attempt to handle the relatedIdentifiers

[Trunk | Monitor Service]:
1. StakeholderController.java & TopicController.java & CategoryController.java & SubCategoryController.java && SectionController.java && IndicatorController.java:
a. Comment logs for get requests.
b. Use "ForbiddenException" instead of "AccessDeniedException"...

[Trunk | Admin Tools Library]:
1. GenericPortalController.java: Added Generic portal controller for handling all portals without type limitation.
2. SimpleErrorController.java: Added /error request mapping, to format all error that are not explicitly handled....