NO CHANGE: possible LF/CR issues in file that I *want* to change
option added for line charts: do not avg over null values... NOTE...
there is more work; hovers act funny on a series broken by nulls
pie chart tooltip: can restrict radius of invisible circle-path (good for centering)
slice() calls: should have atleast one argument, technically (W3)
clear/destroy: remove more Raphael and jQuery objects related to a chart
being more thorough with cleanup
for 'bar' series ('line' plots), now fillProps are considered
like a 'line', a 'bar' has a line border (stroke, opacity, etc)
plus a fill (fill, fill-opacity or opacity)
line chart: avg over nulls: fixed bug with highlighting wrong spot on broken series
line chart: null/undefined tooltips: option to not create mousearea for hover/tooltip
Merge branch 'better-clear-destroy' into 2013-04-16-build-attempt
Merge branch 'null-vals-linechart' into 2013-04-16-build-attempt
Merge branch 'pie-chart-center-tooltip' into 2013-04-16-build-attempt
Merge branch 'skip-Null-tooltips' into 2013-04-16-build-attempt
ELYCHARTS v2.1.4-SNAPSHOT-CXE-1.0: regenerated distribution files, updated changelog