Fixes #4525: Decouples group content visibility from membership policy
made constant easier to read
more constants readability updates
last readability update for constants
updated coding standards issues and removed UserStatus class - unit tests are not passing yet
fixed unit tests
Change "Gatekeeper mode" to "Content access mode", language fixes
Merge pull request #5463 from cash/group_vis

Decouples group content visibility from membership policy