optimize script.js, clean up comments which have been read
remove .lt-ie9 styles, remove background-position-x/y, enhance compatibility of script.js

remove function findPos(obj);
replace classList.add("") with className += "";
replace document.body.scrollTop with document.body.scrollTop ||
document.documentElement.scrollTopp;
run aside () only when there is #aside.
optimize structure and styles

replace .bottom with <hr>;
replace some class'es with id'es;
optimize floating;
mergiing ul.list styles;
restyle the first news <li> on index;
simplify LESS nesting.
add IDs to contact-us.html, ignore CSS
add IDs to contact-us.html, ignore CSS
simplify the nesting of index.less
merge h2 styles, make .links green
hack for html.lt-ie9
form under development, replace h2 in Windows with images, tweak all icons, edit .featured list according to teacher's comment,
new color scheme: red orange cyan green
alter the cyan
alter the cyan to purple
alter the purple
add form.html, remove ugly restyling for .lt-ie9
update h2 images for Windows
remove @clr from index.html
form.hrml: separate styles of h1 and button
small tweaks
merge repo with h5bp
delete unnecessary files