updated core-header-panel for polymer boilerplate
updated core-header-panel for polymer boilerplate

brettle/boilerplates,ThaumRystra/boilerplates,dandv/boilerplates,brettle/boilerplates,ThaumRystra/boilerplates,chiester/useraccounts-bug,dandv/boilerplates,meteor-useraccounts/boilerplates,meteor-useraccounts/boilerplates,chiester/useraccounts-bug