bug#22300: 25.1.50; Dired -- renaming folders/files to CamelCase/UPPERCASE/lowercase.

[Keith David Bershatsky]

Thank you, Eli, for walking me through the `elisp` portions of the code.  When 
the feature #22300 is implemented, I'll take a look at the new tail end of 
`dired-do-create-files' to see how the new situation will be handled.

Your helpful teaching/mentoring is greatly appreciated!

Keith

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At Wed, 06 Jan 2016 17:40:45 +0200,
Eli Zaretskii wrote:
> 
>  * * *
> 
> IOW, all it takes to fix this is to write an OS X specific predicate
> function that would accept a file name and returns and indication
> whether that file lives on a case-insensitive filesystem.  Then we
> should just use that function in Dired and in rename-file.