data-table now uses dimension.bottom when order is set to d3.ascending
Added test for ascending order in data-table.
Generate valid clip path id

Prior to this patch, if you created a dc chart using a complex selector
like dc.barChart('#area .bar'), the resulting clip path id wa invalid:
'area .bar-clip'. This patch replaces spaces, periods, and hash marks
in the id with hyphens to generate a valid clip path id.
Fix vertical lines for ordinal charts

Charts using ordinal scales on the x axis with .renderVerticalGridLines
set did not work because ordinal scales do not have a .ticks function.
This patch checks for the existence of a .ticks function on the x scale
before trying to use it when rendering vertical lines, and if there isn't
one uses the scale's domain.
Fixing an anchor link
Merge pull request #726 from r4j4h/patch-1

Fixing an anchor link
Merge branch 'master' of https://github.com/dc-js/dc.js
get latest and cure bitrot in box-plot-spec

still running into axis trouble with row-chart-spec
fix rowChart rootValue()

there was already a pretty hacky check for -Infinity
but then d3.scale.log changed (from d3.interpolateNumber)
to return NaN instead, so check for that as well

this is all in lieu of real log scale / root / non-zero-start support
Update CONTRIBUTING.md
build examples index on web server
annoying formatting changes

probably caused by npm update
fix broken link

fixes #747
add 1.7.0 api doc
ignore unused parameters (but not variables)

it's often necessary to declare parameters that aren't used
it would be dumb to make the code less legible to please jshint
add titles for filter handler functions, and clarify a bit

fixes #737
merge PR #672: display lowest items in data table when sort ascending

closes #623
add Viktor
use function identity comparison instead of Function.name

@monostop, a tiny change here -
IE11 does not yet support the ES6 feature Function.name
function identity comparison is well defined, though
Merge pull request #685

Conflicts:
	src/coordinate-grid-mixin.js