Customizable Dishwasher Salt Funnel

#### Version 1.1 (2016-09-08):
Added three parameters:
* **STRAIGHT_PART_HEIGHT**: How long should the straight chute be?
* **FUNNEL_HEIGHT**: How high should the funnel part be?
* **HEIGHT_OF_PILLARS**: What is the distance between salt outlet bottom and pillar bottom?

#### Version 1.0
Since mine went KIA, I was looking for a replacement. Unfortunately, the manufacturer wanted 9 EUR + shipping, and thus I created one myself via openscad. It's highly parameterized, so you can adapt a number of settings:

* **$fn**: As always, the resolution of things.
* **SALT_INTAKE_INNER_RADIUS**: What is the inner diameter of your salt intake slot? It will be the outer diameter of the straight cylinder "hovering" over intake. Deduct a few mm so that the salt really goes _in_ the slot.
* **SALT_INTAKE_OUTER_RADIUS**: What is the inner radius of the circle where the pillars touch the ground? Meaning, how far apart should the inner border of the pillars be?
* **OUTER_RADIUS**: That's the