Regression: Fix a bug in attachment loading
Regression: Fix KunenaAttachmentHelper::get()
Fix 404 error on protected attachments
Fix possible 'Couldn't fetch mysqli_result' error in KunenaDatabaseObject
Fix loading order for system template
Crypsis: Fix bad HTML in URL tag layout
Statistics: Use 401 instead of 404 if guest cannot see the page
Load avatar integration also for current user and KunenaUser::getInstance()
Harden Kunena ACL against session corruption (store only integers)
Fix typo
Do not use plugin action authentication for category moderators
Regression: Fix bug in ACL
Merge pull request #2270 from mahagr/feature-hmvc

Fix a few bugs while working with the code