WTD-1247
WTD-884
Changed CSS .l-infobubble-wrapper abs > relative;
Added display: block class for mct-container;
Tweaked bubble evaluation JS for 'goLeft' behavior;
Added constants for bubble max width and left/right margin;
Refine positioning to behave correctly when mouse is on
right and/or lower part of screen; listen for scope
destruction to avoid cases where an element is removed
before mouseleave is ever called. WTD-884.
