Remixed 15mm Scaled Strip Mall Shops

Went over the model to manifold the entire thing cleanly in Blender 2.75.

* Slightly widened bottom post holes for columns.
* Made back doors arched similar to front to reduce need for support.
* Equalized the width of left and right walls.
* Changed roof to match main building changes.
* Made a few details thicker to give them more strength and print ease.

Just some small changes but I thought I should share them.
Remix it more! Keep it evolving :)