Allow all admins to purge cache

[Arty]

Currently only founder has permission to purge cache, but it might happen that other administrator might need to purge cache: if another administrator has updated files or something broke.

Wouldn't it make sense to allow all administrators to purge cache? That function is completely harmless.

[igorw]

Agree, restricting to founders makes no sense.

[callumacrae]

+1, I've had to have several boards I work on make me founder so that I can purge the cache.

[Arty]

https://github.com/phpbb/phpbb3/pull/582

[A_Jelly_Doughnut]

How about requiring a_server so that there is some granularity on the permission.

I agree that there is nothing really harmful that can be done with "Purge the Cache", just throwing an idea out.