Bug#817138: education-main-server: please update links to Squid proxy

[Amos Jeffries <squid3@treenet.co.nz>]

Package: education-main-server
Version: 1.812
Severity: minor


The Debian 'squid3' package has been renamed to 'squid' in
Testing/stretch. The 'squid3' package is now a transitional temporary
package that will be removed at some point.

Please update your package to "Recommends: squid".

If there are any other references to "squid3" in your package they will
also need to be updated. That includes file paths and documentation.

Thanks
Amos