Review apache specific code in light of requiring >= 2.4.7

Problem/Motivation

In #3114079: Update minimum supported Apache version to >= 2.4.7 we increased our stated minimum Apache version to >= 2.4.7.

Proposed resolution

Let's review our Apache specific code in light of this:

• system_requirements() rewrite support testing
• Our .htaccess files
• Anything else

Remaining tasks

Decide what to do.

User interface changes

API changes

Data model changes

Release notes snippet