add sub class to mobile menu Fixes #4
reset yjsg-row when in yjsg_grid
reset to default adds 3 top menus

reset to default adds 3 top menus if top menu is in header by default
improved blog layout spacing
bignumber css fix
css_font_family in default xml should be 6
mediaelement new image
improved rendering

added clean page sfx method and page suffix to html tag
improved code

added clean page sfx method and page suffix to html, fixed images
shorcode override