[Code Style] administrator/components/com_banners
[Code Style] administrator/components/com_cache
[Code Style] administrator/components/com_categories
Merge pull request #4515 from chrisdavenport/cs1

[Code Style] administrator/components/com_banners
Merge pull request #4518 from chrisdavenport/cs3

[Code Style] administrator/components/com_cache
Merge pull request #4520 from chrisdavenport/cs4

[Code Style] administrator/components/com_categories