Add option to display legend in natural order
Merge pull request #176 from philwills/legend-natural-order

Add option to display legend in natural order
allow successive ajax requests to reuse the same graph instance
raise an error if we have no element reference in Rickshaw.Graph
add x-axis agnostic of time
mention x and y axes in README.md
update built libs
Hover over nearest point instead of previous
makes the legend item disabled if the series is also disabled
Updated Makefile: rickshaw.js and rickshaw.css now depends respectively on js and css files.
removed the z-index attribute to annotation_range because it prevented it to become visible
Update README.md
don't consider null values in determining domains
Merge pull request #204 from alightgoesout/patch-2

Updated Makefile: rickshaw.js and rickshaw.css now depends respectively on js and css files.
Merge pull request #189 from mmeisel/master

Allow hover for next-to-last point in series
fix comment in extensions example; closes #194
Merge pull request #205 from alightgoesout/patch-3

removed the z-index attribute to annotation_range because it prevented it to become visible
Merge branch 'master' of github.com:shutterstock/rickshaw
round up negative indexes to zero in finding hover detail points; fixes #192
don't let explicit max of zero fall through to derived max; fixes #178