Edits to windows and Mac installation instructions

Includes creating a file for reusable install content
Removing the diff profile from source and project
Moving sections not on installation to other chapters

Moving performance problems to common problems chapter
Moving runtime config to configuration chapter
Edits to install topics
Edits to installation topics

Discovering duplicate material
Consolidating and reconciling scattered information
Fixing usage and syntax
Removing things the user does not need to know
Finding unclear or incomplete statements and inserting questions as
draft-comment elements.
Merge branch 'master' into dev

* master:
  EXM-30803: New icon for the Link action group.
  EXM-30803: New icon for the Link action group.
  EXM-19586: Renamed menu entry.
  EXM-16680: Removed unnecessary screenshots. Updated shortcuts. Minor text corrections.
  EXM-25921: Renamed action. Various edits. New screenshots.
Edits to upgrade and uninstall topics
Multiple edits. Adding comments containing questions.
Merge remote-tracking branch 'origin/dev'