fixes #5191, #5193 - Rename system groups to host collections everywhere

This commit contains the changes needed to rename system groups to host collections
throughout the engine.  Summary of changes includes:
    schema migrations
    file renaming
    route updates
    model updates
    controller updates
    helper and lib updates
    view updates
    test/spec updates
    ui updates
    ui test updates
    ...
Merge pull request #4050 from bbuckingham/system-group-rename

fixes #5191/#5193 - rename System Groups to Host Collections
4260-actkey-repo - adding products tab for act key

4260-actkey-repo - scoped to sub-controller

4260-actkey-repo - seems to be working

4260-actkey-repo - cleaning up

4260-actkey-repo - fixes 1089637
4260-actkey-repo - added resources for sub-mgr
4260-actkey-repo - workaround after rebase