spawn ENOMEM when trying to upload a picture from microca.st

[jankusanagi]

It seems that sometimes, something on a pump.io server gets 'corrupted' and then all picture uploads, by any user in that server, fail with the server error:

spawn ENOMEM

This happens in microca.st at the moment, but it has happened in other Pump servers before.

[evanp]

This is because the servers there have such little memory space. They can't handle spawning out the gm binary to do thumbnailing.

The short-term solution is to put microca.st and other sites on bigger servers. The long-term solution, and probably the best one, is to change pump.io to use a native gm library like https://www.npmjs.org/package/graphicsmagick2

[strugee]

Changing gm libraries may be somewhat complex; pushing until 0.4.0 since we want to get 0.3.1 out fairly quickly