Updates conflict fields, Adds Assets, Navs and Trees to reserved list

[adampatterson]

Adding content as a file driver disk to assets causes conflicts.
Adding structure as an entry field name causes conflicts with the field, as well as accessing that data in a Nav Tree

[duncanmcclean]

Adding content as a file driver disk to assets causes conflicts.

I know it's been a while since you opened this. Do you remember what kind of conflicts you ran into?

[adampatterson]

@duncanmcclean I'd have to check my notes.

I think creating a structure entry sort of merged in different parts of the nav tree with the core structure.

I don't recall what what naming an asset container content did. I seem to think it was empty or would not display images after uploading them.