Suggestion: More header options, data options

[glaubernespoli]

Two important suggestions that would enrich the lib (that I missed while using it):

1. More header options. In my case, I simply wanted to hide the header all along, and there was no option to do so.

2. Data options. You can, for now, set options for specific columns or specific rows, but not for specific data. In my case, I wanted to have a specific data field be of a certain color based in some factors. But while using the lib, I could only set the color to the whole row, not to each field of the row separately. I ended up having to skip this feature and use a 3rd party lib to achieve that.

[es50678]

I'd also like to tack on the idea of spanning rows/columns. I've used table instead now for that as a workaround.