Don't invalidate self.app because it's needed in close_cert_app
Don't invalidate self.app because it's needed in close_cert_app

askeing/fxos-certsuite,oouyang/fxos-certsuite,Conjuror/fxos-certsuite,mozilla-b2g/fxos-certsuite,ShakoHo/fxos-certsuite,cr/fxos-certsuite,ShakoHo/fxos-certsuite,oouyang/fxos-certsuite,oouyang/fxos-certsuite,ypwalter/fxos-certsuite,mozilla-b2g/fxos-certsuite,cr/fxos-certsuite,ypwalter/fxos-certsuite,Conjuror/fxos-certsuite,Conjuror/fxos-certsuite,Conjuror/fxos-certsuite,Conjuror/fxos-certsuite,oouyang/fxos-certsuite,cr/fxos-certsuite,oouyang/fxos-certsuite,oouyang/fxos-certsuite,askeing/fxos-certsuite,ShakoHo/fxos-certsuite,oouyang/fxos-certsuite,cr/fxos-certsuite,cr/fxos-certsuite,ypwalter/fxos-certsuite,mozilla-b2g/fxos-certsuite,Conjuror/fxos-certsuite,cr/fxos-certsuite,ShakoHo/fxos-certsuite,ypwalter/fxos-certsuite,ShakoHo/fxos-certsuite,askeing/fxos-certsuite,ypwalter/fxos-certsuite,mozilla-b2g/fxos-certsuite,ypwalter/fxos-certsuite,askeing/fxos-certsuite,cr/fxos-certsuite,askeing/fxos-certsuite,askeing/fxos-certsuite,mozilla-b2g/fxos-certsuite,Conjuror/fxos-certsuite,ypwalter/fxos-certsuite,ShakoHo/fxos-certsuite,askeing/fxos-certsuite,mozilla-b2g/fxos-certsuite,mozilla-b2g/fxos-certsuite,ShakoHo/fxos-certsuite