Maint: Simplify function documentation
Maint: Make delay and sleep defaults 0 ms
Maint: Return console logs

Although console.log (and its alternatives) return undefined, this can
still be combined into one line since an empty return doesn't return
anything either.
Maint: `err` is more commonly used than written out
Maint: Reduce console spam
Maint: Move console log inside if statement
Doc: Update title to reflect simplified module name