add doctype
[#73271218] rmeove apple touch icon style
[#73271218] html for doctype icons & icons
[#73271218] show all doctype icon samples
[#73271218] refactoring
[#73271218] update grunt build gengo.css
Merge pull request #27 from gengo/73271218-style-doctype

[#73271218] Style doctype icons