add html email formatter
fix code-style and add documentation to addTitle and addRow methods
Remove the unused $format parameter from the construct
Add <pre> tag to define the json as a preformatted text.
Fix english in doc blocks
convert $th content special characters to HTML and make all the tables with the same with
consistent spacing in html tags
consistent spacing in title style attribute
convert $title and $th special characters to HTML
Merge remote-tracking branch 'tiagobrito/master'
Tweak html output a bit for readability, update readme, force unicode, refs #275