OverDoor Hanger

This is a remix of [@numberSix's over-door hanger](http://www.thingiverse.com/thing:40409) design.
A handful of changes. Shortened the sticky-outy part, and added a hole for various hanging applications. Added a few chamfers here and there and edited the mesh for cleaner print on my machine Inner grooves seem to add spring and resilience at the same time.

Also changed the door-size to fit a 36mm door, which seems to work on several of the doors in our house, nicely snug.

Thanks for a good design to start my tweak from @numberSix. See his original part for other door-sizes, or if you like my shorter design tweak, you can easily edit to your needs.