Update documentation for the options

[lukeapage]

trafficstars

In progress (by me), but this is just to track, we are missing alot of options.

[lukeapage]

see https://github.com/less/lesscss.org/issues/61

[lukeapage]

see https://github.com/less/less.js/issues/1240

[felixfbecker]

Indeed. I can see the options for the command line, but how do they translate to the API? Are they all just camel cased?

[seven-phases-max]

Are they all just camel cased?

Yes. (For API options it's worth to look at the most and always up-to-date and valid documentation of it, the lessc script itself).