[meta] Create a 7.x-2.0 release

Problem/Motivation

This is to keep track on which issues are deemed important to complete before considering this branch ready for a .0 release.

Proposed resolution

These are the things that should be added before creating a .0 release for the 2.x branch:

• #2671926: Update documentation
• #2669088: Create a "strict" mode
• #2670050: Provide a mechanism where an admin can force a system capability check
• #2585741: server IP blacklisted (provide a mechanism for separating domain from user checks and allow the admin to choose which to perform)
• #2719507: Not all forms use the same element for validation