#73 Added support for recognizing self-closing tags and CDATA in non-XML mode
Fix option to disable lower case tags and attars in non-XML mode
Added this._lowerCaseTagNames and this._lowerCaseAttributeNames
Handle case where options is null and allow truthy values
Switched to using "in" operator for options
Merged options initialization into a single line
Merge pull request #74 from patrick-steele-idem/master

Fix existing and add new options