Improve function coding practices

[bschilder]

This is more of a personal preference, but i find it much easier to read functions when the arguments are separated by newlines.

Also, it's good practice to make all function arguments explicit, bc if the order of the args ever changes, the function won't break.

Lastly, it's not essential to for every single function, but I think including @examples for a greater proportion of functions would be helpful.

[bschilder]

I'll make some these changes as I go along, but it would be great if you could do more of this moving forward @ovrhuman !

[bobGSmith]

Sure will do!

[bschilder]

Went through and added examples (and unit tests) for all exported functions in HPOExplorer and MultiEWCE