#3831 adding slider tab panel to dialog

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30520 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for #3896 -- this time Derivative[ g(sin(x)) f(x)] works.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30521 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3896 removed debug messages

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30522 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Allow Derivative[sin(x),2]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30523 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e