creating main.scss file for site.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
updating grunt file.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
updating site styles,scripts with grunt change

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
updating home.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>