Replace Telerik UI components by standard DNN version

[EPTamminga]

Remove all Telerik controls and replace by standard jQuery controls, so that the Telerik UI DLL is not referenced and not needed any more

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been closed automatically due to inactivity (as mentioned 21 days ago).
Feel free to re-open the issue if you believe it is still relevant.

[EPTamminga]

Still relevant

[stale]

We have detected this issue has not had any activity during the last 180 days.
That could mean this issue is no longer relevant and/or nobody has found the necessary time to address the issue.
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[stale]

This issue has been closed automatically due to inactivity (as mentioned 21 days ago).
Feel free to re-open the issue if you believe it is still relevant.

[valadas]

Reopening this, we actually had a discussion in making the new Dnn one public instead of internal, we may be able to consume that one soon.