removed defunct method and ivar for additional attributes, this became obsolete due to the DTHTMLElement class cluster where each concrete subclass takes care of its own attributes and you no longer need to add anything from the outside
renamed method to attributesForAttributedStringRepresentation to avoid confusing it with HTML attributes
method to add and remove custom HTML attribute to NSMutableAttributedString #491
Added class method to specify "handled HTML attributes" per DTHTMLElement subclass, property to specify which class names to omit #491
added optioning out parameter to get matched selectors from merged style dictionary #491
update test HTML for #491
added DTCustomAttributesAttribute constant #491
for matched selectors, pass the class names to the html tag for ignoring #491
added additional standard attributes to ignore #491
reversed operands
removed NL
renamed property and ivar
fixed test failing on iOS 5
fixed test failing on iOS 5
fixed changed method in unit test
implemented custom HTML range methods #491
added further unit tests for range methods in #491
Merge branch 'od/issue_491' of github.com:Cocoanetics/DTCoreText into od/issue_491
Moved html attributes range methods to normal attributed strings #491
Changed paragraph level attributes output to work with dictionary and consider custom attributes #491