ensure all DocumentFragment parse methods take ParseOptions and an options-configuration block

[flavorjones]

See #1692 for the beginning of this work on HTML::DocumentFragment

See #1843 for a rebase of this work onto a modern master

See branch 1844-fragment-parse-options-overhaul for the start of adding tests to HTML::DocumentFragment which are more thorough than the current test approach

Things I'd like to do as a result of this issue:

1. [net new behavior] have all XML::Document and HTML::Document underlying parse methods (e.g., #read_io, #read_memory) save the ParseOptions as a Document attribute, to make testing a bit easier
2. [partially implemented by Add an options parameter to all the methods that allow creation of an HTML document fragment #1692 ] have all XML::DocumentFragment and HTML::DocumentFragment parse methods take options and an options-configuration block
3. [fixes] ensure the JRuby impl matches the CRuby behaviors

[GreSuh]

Does this only apply for parsing http fragments or did I miss he change for Nokogiri::XML::DocumentFragment.parse ?

[flavorjones]

@GreSuh thanks for asking this question. From the description above:

2. have all XML::DocumentFragment and HTML::DocumentFragment parse methods take options and an options-configuration block

Hope this response helps.

[flavorjones]

See #2399 for an updated version of this branch.