Bad spelling suggestions with camelCase words

[Ben-Voris]

In plain text, the word "WIth" is seen a misspelled and the spelling suggestion being with "itch".

I think because I have set Split CamelCase Words. (Also none of the Ignore Words boxes are checked.) This again speaks to the need to allow specifying words with an exact capitalization (e.g., allow iPhone but reject IPhone). See https://github.com/Predelnik/DSpellCheck/issues/37#issuecomment-333958256 and https://github.com/Predelnik/DSpellCheck/issues/89#issuecomment-359122900.