range selection for bar chart
a slightly better range selection
Merge branch 'master' of https://github.com/cloudspace/angular.crunchinator.com into 64310340_range_selection
add range selection to area chart
range selection handles
re-add axis offset
appease linter
add selection parameter to area chart; fire filter event on drag
remove debug code
Merge pull request #51 from cloudspace/64310340_range_selection

64310340 range selection