change implementation of .quantity to .view
change implementation of .quantity to .view

mhvk/astropy,mhvk/astropy,astropy/astropy,lpsinger/astropy,saimn/astropy,pllim/astropy,lpsinger/astropy,dhomeier/astropy,dhomeier/astropy,StuartLittlefair/astropy,lpsinger/astropy,larrybradley/astropy,larrybradley/astropy,pllim/astropy,StuartLittlefair/astropy,saimn/astropy,StuartLittlefair/astropy,pllim/astropy,saimn/astropy,lpsinger/astropy,dhomeier/astropy,astropy/astropy,aleksandr-bakanov/astropy,astropy/astropy,StuartLittlefair/astropy,dhomeier/astropy,saimn/astropy,StuartLittlefair/astropy,mhvk/astropy,pllim/astropy,larrybradley/astropy,dhomeier/astropy,astropy/astropy,aleksandr-bakanov/astropy,pllim/astropy,saimn/astropy,aleksandr-bakanov/astropy,mhvk/astropy,mhvk/astropy,larrybradley/astropy,larrybradley/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,astropy/astropy