Initial work on improved scrubber tooltip mode
Fixed tests
Smart scrubber tooltips : switch side when not enough space
Scrubber tooltip don't overlap anymore
Updated tests
Improved test coverage
Fixed tests and rebased from munster
Upgraded Travis' Firefox version
Stubbed some more svg measuring for Travis and cleaned the code
Losened visual regression tests
Increased version number for release
Updated README and tootlip's formatter interface
Changed a visual test so it also tests the scrubber tooltip formatter
Merge pull request #108 from n3-charts/scrubber_fixes

Better, prod ready scrubber tooltip
Fixed several issues with scrubber
Merge pull request #109 from n3-charts/fixes

Fixed several issues with scrubber
bump version number
Fixes issue 64 : stripes were common far all charts in the page under FF
Fixed issue 111 : abscissas labels were cropped on the right
Fixes issue 85 : y label are no longer cropped when using custom labelFunction