Fixes a bug in the dovechart code. The bug is that if you descend into a category by clicking the disclosure triangle, adding a 'breadcrumb', and then ascend by clicking on a higher level breadcrumb, the app will appear to be working. But if you try to descend again, you will get a Javascript error. Fix is simple... Don't over-delete the breadcrumbs on ascent.
Fixes a bug in the dovechart code. The bug is that if you descend into a category by clicking the disclosure triangle, adding a 'breadcrumb', and then ascend by clicking on a higher level breadcrumb, the app will appear to be working. But if you try to descend again, you will get a Javascript error. Fix is simple... Don't over-delete the breadcrumbs on ascent.

monarch-initiative/monarch-app,jmcmurry/monarch-app,jmcmurry/monarch-app,DoctorBud/monarch-app,kshefchek/monarch-app,kshefchek/monarch-app,kshefchek/monarch-app,DoctorBud/monarch-app,monarch-initiative/monarch-app,jmcmurry/monarch-app,DoctorBud/monarch-app,kshefchek/monarch-app,jmcmurry/monarch-app,kshefchek/monarch-app,monarch-initiative/monarch-app,monarch-initiative/monarch-app,jmcmurry/monarch-app,DoctorBud/monarch-app,monarch-initiative/monarch-app,DoctorBud/monarch-app