Detect and warn about APC 3.1.14 / 3.1.15

Summary:
These versions are broken, but package distros seem to be picking them up. :/

Since the error you get is completely useless, fatal immediately with a useful message.

Ref T2594.

Test Plan: Faked verisions and hit the issue.

Reviewers: btrahan

Reviewed By: btrahan

CC: brennantaylor, Arijit, aran

Maniphest Tasks: T2594

Differential Revision: https://secure.phabricator.com/D6415