favicon update

blue color changed
add some new style

new ol style, new question and answer icon
time font change

go bold
change block quote .push-right style

font-style change to normal
md drafts deleted

no more markdown writing
resize the image

increase max-width of big figure to 1200px
new icon, figcaption new look, h2 change size

add in .icon incase for future use;
change the look of figcaption for less attention
Revert "new icon, figcaption new look, h2 change size"

This reverts commit 4e60047b4e4aea60972d53f3b856c0475b35bf55.
figcaption new design; changed some font size

new idea of figcaption from mashable; removed some wasting space
font-family setting