Thank you for reporting these problems. We are working to solve some of them (the unneeded warnings in multilingual mode for example), others are on the line waiting to be fixed.
Your Telerik points are updated.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items