Unmaintained Custom Robots 1.1.4

This update fixes a few bugs that I didn't catch and/or introduced in the last version.

This also adds an option to completely replace the built in robots with your custom robots.

This version adds basic caching, as well as fixing the case sensitivity bug.

It also has improvements for the export robots page.

Fix issue with duplicated query
Changes to importing

Fix server error caused by case-sensitivity.

Added the ability to import and export robots.

Fix install error.