4.0.2 gives "Function names can't start with a capital letter."

Please, I beg for mercy: I have 96 functions in my FASILITU library. With all due respect to the other schoolteacher, I am also a schoolteacher. Good and clear naming of my functions aids in self-documenting my 7000 lines of code. I use a consistent system of camel case, and even have some function names of a single letter, where the capital is meaningful in a musical context. Please don’t impose such a radical change. Please allow the user the option to work “dangerously” if desired and provide an option for function names that begin in lower case.