AIOM 3.1.4

This is a minor update to AIOM. 

Changes:
- CacheFiles for Pages are now deleted, when a new minimized file is created
- Includes a fix for a bug, that throws an error if the document root is different to ProcessWire's base path

Notes:
- AIOM is now also developed by [Conclurer](https://www.conclurer.com)