Added functionality to allow multiple color thresholds

//docs
Changed configuration to use 'value' instead of from&to
Inverted and Reversed Support

inverted does not work in VML
Changes for VML
Removed Studies-File
Adjustments to the zones feature
Fixed bug regarding 'threshold'
Added support for horizontal zoning
VML Support
store clips for later use
Corrections on pointer behaviour
Merge remote-tracking branch 'origin/colorThresholds' into sciuridae

Conflicts:
	js/highcharts.src.js
	js/highmaps.src.js
	js/highstock.src.js
	js/parts/Series.js
Clean up after merge
Fix for color zones in BubbleSeries