Failing spec for input w/trailing whitespace
Merge branch 'post_input_whitespace_bug' of https://github.com/aceofspades/nokogiri into aceofspades-post_input_whitespace_bug
Merge branch 'aceofspades-post_input_whitespace_bug'
Merge "Keep non-significant blanks node in HTML parser" from libxml2 v2.9.x.

https://git.gnome.org/browse/libxml2/commit/?id=f933c898132f20a50ba39ac6116378b71a01c700