d3 updated to latest version & timeDot gradients are correctly updated

timeDot gradients were not updated after some filtering updates

rowBarLines are now correctly updated (even/odd lines are colored with
different grayscale to make charts easier to read)

Day-based timeline filtering enabled

Timeline zoom controls are correctly aligned to right only if the time
filter is also aligned to the right of the timeline.
Smoother/faster layout updates

Optimized some code so that dom updates are handled better after layout
changes
* facet hide/show
* change bar width
* resize browser
Minor fixes
Logging only from valid hosts
Minor demo updates