Add a simple table for functions to the functional module

[kuettler]

No description provided.

[Hackerpilot]

Suggestion: "while" instead of "with"

[quickfur]

Should the list be sorted, for easier human searching?

[quickfur]

Other than that, it's looking good. This is a much-needed doc improvement. Thanks!!

[kuettler]

Yes, I refrained from sorting since there are groups of functions, but it really makes a difference. You are right.

[quickfur]

If there are groups of functions, probably we should group them by category, and sort them within each group? E.g., like the old std.algorithm docs here: http://dlang.org/phobos/std_algorithm.html

[kuettler]

Nah, too much grouping. This is a small module with a short list of functions, some of which are closely related. Like lessThan and greaterThan. I am aiming for a welcoming summery that gives the curios visitor a first impression. Putting lessThan and greaterThan on the same line matches everyone's thinking (at least I hope so). This is not auto-generated and it is not meant to pretend to be.

[quickfur]

Fair enough. Let's merge, we can improve on this later if necessary.

[quickfur]

Auto-merge toggled on

[kuettler]

Thank you. :)