Clear Server Cache goes to a dead endpoint

[chrisknoll]

Expected behavior

Clicking clear server cache in configuration screen should result in work being done.

Actual behavior

Call returns a 404 in the console.

Steps to reproduce behavior

1. Log into Atlas
2. Go to configuration screen
3. click Clear Server Cache
4. Observe 404 in console.

[chrisknoll]

I think this button was a leftover from when encache was removed.

I don't think i see a UI element that goes to /sources/refresh so I was thinking that this button could be reclaimed to do this.

[chrisknoll]

Other option is that we can clear achilles_cache and cdm_cache with this button.

[konstjar]

I like the last proposal