Removed unneeded g.root element
First step of updates to support d3 v3.3

remove tickSubdivide option which is no longer supported
move whole x axis to the bottom of the time slider
adjusted stylesheets for not needed tick.mayor (renamed simply to tick)
use 100% height and 100% width instead of hardcoded values (especially height) before
Fix mayor ticks
Rename the start and stop options to domain.start and domain.stop
Specify viewport width and height for zooming
Added stubs for zooming and centering
Extend the input domain to nice values
Allow for programmatically zooming to a specific time range