[Feature] Directional navigation - Minor improvements to finding the best match in some edge cases
[Data] data for thehindu.com
[Minor] Fixed typo
[Fix] Fix error when mod_filterCUs's isActive() is called from mod_main's onTabDeactivation() on a page without CUs
[Feature] Usability: Spotlight/Dimming effect should go away if the page is scrolled to a part without the selected CU visible
  - Also added CSS transition for dimming effect
[Minor] Change non-CU-overlay color to black, seems nicer as opacity is increased
[Fix] Set opacity to correct value before calling making overlay visible
[Perf] remove scroll event handler before starting smooth scroll and bind it again later
[Perf] Use cached object for $(window)
[Code-quality] Using documentElement.scrollTop instead of body.scrollTop (same for scrollLeft) since the later seems to not be strict mode compliant