#1 : JDK 8.0 Compatibility with highcharts-export-server
Fixed #3579, mixed up levels in multidimensional drilldown.
Drilldown module: Added color tweening to column drilldown. Built-in animation support.
Offline download demo - enabled download in IE.
Merge pull request #3566 from svanacker/1

#1 : JDK 8.0 Compatibility with highcharts-export-server
Solved missing dependency for Jetty
Upgraded spring version to latest version 4.1.2
Added new method, Series.removePoint, to allow removing points that are not instanciated on demand.
Fixed #3600, errors raised in modules when a chart was destroyed in its own callback.
Merge remote-tracking branch 'origin/master' into sciuridae
linted