Tests for 4.2 commands

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25556 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Change aspect of separators in toolbar

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25557 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Reset the view only if dimensions really change.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25558 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web] add support for data-param-enableRightClick

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25560 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] fix a few small bugs, e.g. avoid crash in exact if epsilon==0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25561 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e