updating pie chart directive
additional updates to the pie chart directive
fixing xAxisTickValue and yAxisTickValue configurations to accept and process both an array and a function.
added bullet chart implementation
saved chart on the scope so it can be reused on new data, rather than calling addGraph repeatedly

parseInt current width and height
Added script and style files for examples in a subdirectory.
fix to pie chart refresh code
added a controller to each directive to abstract the d3 call, paving the way to override transitions
added objectequality example
Updated bower config.
Merge pull request #19 from patrickrs/master

Updated bower config.
added a controller to each directive to abstract the d3 call, paving the way to override transitions
added objectequality example
Fixed controller dependency injection broken after minification.
Merge pull request #20 from robschley/di

Fixed controller dependency injection broken after minification.
Added support for the new useInteractiveGuideline feature (if it is available).
Merge pull request #21 from robschley/guideline

Added support for the new useInteractiveGuideline feature (if it is available).
updated scatter chart directive
updated sparkline chart
changed xaxislabel and yaxislabel attribute to '@', from '&'
made current transition duration consistent with nvd3 at 250 ms
added missing attributes to scatter chart (x, y)
added start of scatter plus line chart
added nvEvents for event handling
updating to fix failing build