Exporting a chart is possible now (not possible to position it relative to the trackable right now)
Fixed a bug where coordinateSystemID of a chart was not used/useable
Rerenamed BarChat and Chart to BarGraph and Graph
Merge branch 'master' of https://github.com/Firebusa/ARdevKit
Merge remote-tracking branch 'origin/master' into PropetyGrid
Added possibility to set the position of a chart  (relative to screen)
Added event for elements
Merge remote-tracking branch 'origin/master'

fix some bugs
Merge branch 'master' of https://github.com/Firebusa/ARdevKit
Changed some tags in AbstractMarker, AbstractTrackable, IDMarker, PictureMarker

Deleted similarityThreshold in PictureMarker, becaus it is already in AbstractTrackable
Added FileSelectorTypeEditor for openFileDialog when changing image of image Marker
Merge remote-tracking branch 'origin/master' into PropetyGrid
makes adding sources possible
added element enable/disable interface
Merge branch 'master' of https://github.com/Firebusa/ARdevKit.git
Added event to move elements in the previewPanel

Added/changed some tags in BarGraph, Graph
Added default construktor in PictureMarker
Merge remote-tracking branch 'origin/master' into PropetyGrid

Conflicts:
	Editor/Controller/EditorController/PreviewController.cs
fixed bug that each element has its own instance. uses cloning MAGIC!
Merge remote-tracking branch 'origin/master' into PropetyGrid
unnecessary...
changed centration of elements on the panel