Implementing new visual style and layout for RightComment
Implemented sliding feed-list for RightComment
Updated layout style of RightComment: Fixed -> Absolute

To be implemented: RightComment following page scroll
Updated position of RightComment
Implementing: position following page scroll
Implemented RightComment following page scroll

To be implemented: Auto put RightComment again after window resized
Implemented: auto put RightComment again after window resized
Implemented: shift main content left by the size of page and
itself/RightComment
Fixed scrollTop in Chrome
Implemented sliding RightComment
Fixed: auto focus the comment just added in list
Fixed size error
Updated names of some functions
Adjusted action of opening comment (fixed -> absolute)
Fixed size and location of RightComment
Fixed size of RightComment