Improve atom.select documentation

[Kikobeats]

At this moment the documentation is like:

name       : String [REQUIRED]
options    : String [OPTIONAL]
id         : String [OPTIONAL]
value      : String [OPTIONAL]
required   : Boolean [OPTIONAL]
disabled   : Boolean [OPTIONAL]
style      : String tiny|small|big [OPTIONAL]

but actually is wrong! options need to be an array of String that is the options of the select.

Or maybe can be more useful do this more easy for the user, like pass strings of options separate by commas.

(https://github.com/tapquo/atoms-app/blob/master/atom/select.coffee#L33)[I saw the code but I don't udnerstand this line]. It is possible to pass and label too?

the style of the atom select is broken too.

[Kikobeats]

useful for fix the select style:
https://github.com/filamentgroup/select-css