Case Lid for RAMPS 1.4 - Removed Extra Partitions

Summary This is a modifications of http://www.thingiverse.com/thing:32737 but I have removed unneeded internal partitions. Saves plastic and prints faster! With the original parts, you can print a case for Arduino/RAMPS 1.4 in flat sections. Can also be used with http://www.thingiverse.com/thing:146266 if you don't need the clamps on the side of the case bottom.