Fixed message date displayed after newly sent message bubble displayed.
Fixed message date displayed after newly sent message bubble displayed.

When a message is sent, sentAt will be nil for the sender until the
message is sent. By using the current time in that situation, we can
immediately display the date and update it later with the real value
if necessary. (APPS-1053)
dfinzer/Atlas-iOS,InterfaceInc/Atlas-iOS,danielwmsun/Atlas-iOS,dvan001/Atlas-iOS,misberri/Atlas-iOS,Bluefieldscom/Atlas-iOS,hellosimplify/Atlas-iOS,drborges/Atlas-iOS,xuzhenguo/Atlas-iOS,daninfpj/Atlas-iOS,sujohn/Atlas-iOS,fhchina/Atlas-iOS,allensoberano/Atlas-iOS,classic-chris/Atlas-iOS,NghiaTranUIT/Atlas-iOS,ntnmrndn/Atlas-iOS,fishermenlabs/Atlas-iOS,sidewire/Atlas-iOS,charlespsdowd/Atlas-iOS,andrewcopp/Atlas-iOS,keyeMyria/Atlas-iOS,bandlab/Atlas-iOS,sanvean/Atlas-iOS,bright/Atlas-iOS,shaohung001/Atlas-iOS,Suninus/Atlas-iOS,ccrazy88/Atlas-iOS,sunfei/Atlas-iOS,BearchInc/Atlas-iOS,jaderfeijo/Atlas-iOS,nKey/Atlas-iOS,Cambly/Atlas-iOS,geoffmacd/Atlas-iOS,joshleibsly/Atlas-iOS,jflinter/Atlas-iOS,jeff-riffsy/Atlas-iOS,mailyan/Atlas-iOS,r0ct0-tecsynt/Atlas-iOS,venturehacks/Atlas-iOS,linearregression/Atlas-iOS,msdgwzhy6/Atlas-iOS,mohsinalimat/Atlas-iOS,grevolution/Atlas-iOS,acarella/Atlas-iOS,AlexanderMazaletskiy/Atlas-iOS,leopardpan/Atlas-iOS,jianwoo/Atlas-iOS,Eynaliyev/Atlas-iOS