HTML::Element: New dumping methods 'as_lol' and 'content_as_lol'.

Opposites of 'new_from_lol'; includes tests.
Document minimum version of as_lol & content_as_lol
Credit Ben Deutsch for GitHub #2
Perl::Critic doesn't support taint mode anymore
Pretend tests are all Latin-1 so dzil 5 works
as_XML inserted extra whitespace in comments

  Patch from RT #94311
Credit Tomaž Solc for RT #94311
Updated Changes for May 17, 2014 trial release of 5.908