Avoid having text and icon in stylebar at the same time

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33277 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Dependant quadric

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33278 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Show any quadric equation (implicit equation)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33279 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
New redo undo buttons, selected Button style change

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33280 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
* dash lines for trace
* no reset for dash texture

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33281 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e