Add option to change the name of method current_user

[brunoocasali]

Allow changing the name of current_user method to any other, this can be requested at config file. Because sometime a SimpleUser will be answer the survey, and a AdminUser will create a survey. In this case what kind of this users will be the current?

Just add a section in config file, if is not set return :current_user yet!

Thanks!

[iffyuva]

thanks for opening this issue. makes sense.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs for another 14 days. Thank you for your contributions.