fix(module:popover,steps): fix popover always show title placeholder & steps nzDescription property support TemplateRef#556

Merged

vthinkxie merged 2 commits intoNG-ZORRO:masterfrom cipchk:master

Nov 16, 2017

+25-8

Commits on Nov 9, 2017

fix(module:popover): fix always show title placeholder
cipchk
committed

Commits on Nov 12, 2017

feat(module:steps): nzDescription property support TemplateRef
cipchk
committed