added test case for searching track, adding the track and clicking its zmenu
added test case for searching track, adding the track and clicking its zmenu

muffato/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,Ensembl/public-plugins,Ensembl/public-plugins,muffato/public-plugins,andrewyatz/public-plugins,Ensembl/public-plugins