Try to fix black flickering

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27373 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
first start for webGL

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27374 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Try to fix black flickering

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27375 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
* previews use visual settings : ray, segment, polygon
* fix apply defaults to ray
* create specific construction defaults for polyline

* angle between for defaults
* defaults for slider and angle : doesn't apply euclidianVisible
* set visual style to angle > update value computed
* remove strange code in GeoAngle.setAngleStyle()

* refactor ToolBar.getAllToolsNoMacros3D()
* mirror at line tool for 3D
* mirror at point tool for 3D
* rotate around a point tool for euclidian view for plane
* change rotate(NumberValue, GeoPoint) to rotate(NumberValue, GeoPointND)
* dilate at point tool for 3D


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27376 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3510: allow for setting row headers invisible too

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27377 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e