Patrick

Feature/show hidden headers

2

I've added a grey bg to headers that are not visible (i.e. display: none, or visibility: hidden) this is to help make sense of the document outline if you have...

Mention _.VERSION in the documentation

3

Add an alias, or method, for VERSION const e.g. '_.UNDERSCORE_VERSION' or _.version() ==> "Underscore v.X.XX.X" to allow users to determine if Underscore is being used and if so which version.