Fix theme when tidy enable
Replace all <b> to <strong> and <i> to <em>
Change heading font family to Roboto
Add info_die.tpl for responsive theme.
Add info_die.tpl for responsive theme.
Merge branch 'develop' of https://github.com/nukeviet/nukeviet into develop

Conflicts:
	themes/responsive/css/style.css
Merge branch 'develop' of https://github.com/nukeviet/nukeviet into develop

Conflicts:
	themes/responsive/css/style.css
Merge branch 'develop' of https://github.com/nukeviet/nukeviet into develop

Conflicts:
	themes/responsive/css/style.css
Merge pull request #20 from nukeviet/develop

Update code from nukeviet (17/03/2014)