Enable Batch Editing of the ProofHQ user settings

[#1]

The proofHQ settings has no way to batch user settings which makes it nearly impossible to manage system level settings for which kinds of proofs users get when you have many users.

[#2]

I second this! We have hundreds of reviewers/approvers who need their default proof settings changed to Reviewer/Approver as well as update their timezones, standardize their default notifications and disable their ability to download the original file.