Raspberry PI Model B+ case - with fan/vents

Files ending in new:
-removed exhaust fan port
-added passive vent in top
-added clips to hold lid on
-added alignment posts to keep straight
-increased most openings for ports/sdcard


remix of thing:396858

-Added fan exhaust slot for eeepc 901 fan
-added vent holes on base for inlet.
-ethernet port modified to show LEDs

Note:
Mount enclosure upside down to make use of air intake over ram on raspberry PI 2, OR place rubber stoppers on base to raise the case up to let