Adding limitations for 5.0.2
Rewording delete limitation
Remove repetition of the word "files"

This removes repetitive use of "files" in one of the limitations.txt headers.
Fixing typo from changed wording
Merge pull request #790 from bpindelski/patch-2

Remove repetition of the word "files"
Merge pull request #789 from hflynn/limitations-update

Limitations update for 5.0.2