Only record changes if they change something
Show activity logs
Updated indices
Whitespace fix
Moved the get_content_list to Content model
Only show the editing form if content is editable
Added robots rules
Revert "Moved the get_content_list to Content model"

We actually don't want to make this gneric, since it's not useful in many
situations without significant enhancement.

This reverts commit 96e12028f3c2e845a07e53f1641c51a78ee86279.
Fixed configuration
No need to mention the extension