Example 7.5 "Double Quoted Line Breaks" of the 1.2 spec is not parsed properly #307

It seems extraneous trailing white space is not discarded as it should be according to the spec.

Link to the spec: http://www.yaml.org/spec/1.2/spec.html#id2787745
Pastebin example (first item is the expected result (right side of the spec example), second item is the left side example) : http://pastebin.com/PQqGzKGd