Improved Laptop Stand for Thicker Laptops

Updated from the original to include slightly larger hooks to hold thicker laptops and also added a second strut to help hold heavier laptops. Print each side and 2 center struts.

5/24/19 - Updated to offsets for better component interlocking. Also flipped the slots for the struts to all point down to make for cleaner appearance. Also updated orientation of all STLs to properly orient the part on the bed. Now you should only need to rotate the parts about the Z axis if the part doesn't fi