Adjusted the urls in core views to new http entry point.
Renamed `releaseat` and `releasedate` to `release_at` and `release_date` and thus adjusted views and controllers & installer script
Renamed `$pTimeout` to `$pLifetime`
Adjusted some phpdocs in Kryn caching stuff
Fixed the installer scripts
Use `orderByRank` now instead of `orderBySortableId` in `content` getter
Fixed `clearCache` method