do some timeline height management
do some timeline height management

miguelpaz/StoryMapJS,1modm/StoryMapJS,cr3ative/StoryMapJS,jorol/StoryMapJS,wangjun/StoryMapJS,jorol/StoryMapJS,wangjun/StoryMapJS,jorol/StoryMapJS,cr3ative/StoryMapJS,makinacorpus/StoryMapJS,makinacorpus/StoryMapJS,cr3ative/StoryMapJS,1modm/StoryMapJS,wangjun/StoryMapJS,cr3ative/StoryMapJS,miguelpaz/StoryMapJS,makinacorpus/StoryMapJS,BenHeubl/StoryMapJS,BenHeubl/StoryMapJS,jorol/StoryMapJS,1modm/StoryMapJS,wangjun/StoryMapJS,BenHeubl/StoryMapJS,BenHeubl/StoryMapJS,miguelpaz/StoryMapJS,1modm/StoryMapJS