feat(atts): check for id in attrs module
feat(atts): check for id in attrs module

When looking for an ID selector, also look under the 'attrs' property under data. 

One situation this is pertinent is when an HTML string is converted to a virtual node element using snabbdom-virtualize, because that’s where the ‘id’ is put, rather than under 'props' or as a subcomponent of the ‘sel’ property.

Here’s an example: http://esnextb.in/?gist=6925dadd072ae88859f15182bd7cc6d6
TylorS/snabbdom-selector