plot a function with webgl (2d)
traces should not be cleared, when moving the origin
reverting 2740 - traces HAVE TO be cleared when moving the origin:
http://jsfiddle.net/migerh/YDtMq/embedded/result/

when the board origin is moved, traces aren't moved with the origin, the construction does not display a valid result because it's not the trace curve we wanted to see. Additionally, the board is polluted by unnecessary traces:
http://jsxgraph.uni-bayreuth.de/~michael/traces.png
some tests
fixed bugs in showcase examples
Improving gliders on lines defined by an ideal point
added hex2rgb function
added hex2rgb function
Make a new core for Wolfgang
changed removeEventHandlers
reverted r2748
use has{Touch,Mouse}Handler in addEventListeners
split up event handling adding and removing into touch and mouse
forgot to remove some console.logs
one should set has{Mouse,Touch}Handlers to false BEFORE addEventListeners() is called...
MultiTouch Construction option added on touch devices
Added a GEONExT example for pointsnap
zoom and pinch gesture are disabled in multitouch construct mode
mediawiki plugin: new parameter "modules"
Introduced the point options snapToPoints. 
That means, all other points are attractors. 
This enables the options "pointsnap" in GeonextReader.