JSL Question: How to 'flatten" a list of lists

[#1]

I would like to convert a "list of lists" e.g.

mylist={{"a","b"}, {"c", "d"}, {"e","f", "g"}}

into a simple list with each element from the nested lists e.g.

// desired outcome is this list
flat_list={"a","b","c","d","e","f","g"}

Is there a simple way to do this in JSL?  

In general, the nested lists may also contain lists, and the depth of nesting may not be the same for each element in the starting list, e.g.

wild_list={{"a", {"b", "c"}}, {"d"}, {{"e", {"f"}}, "g"}};

[#2 · Accepted solution]

Attached is a script using charcter functions.  This can also be done with recursion. 

[#3]

Much thanks, very helpful.  I like the recursive function, and I will make use of it.  

[#4]

With you permission, I'd like to put you script in as a JSL cookbook item.  Let me know if that's ok with you.  

[#5]

Sure, go for it.