v4.0.5

Bug Fixes

• add more types to chart options (55c3d91), closes #362
• add null as cell type (07487d1), closes #388
• docs: Update homepage link. (944afc1)
• fix empty columns check (88e77f2)
• switch to using a dataView to hide columns (2d91574), closes #391
• update backgroundColor type (d560a30), closes #375