refactor(segment): iOS fixed the segment colors in a colored toolbar
refactor(segment): iOS fixed the segment colors in a colored toolbar

closes #597

driftyco/ionic,jarrodkoch/ionic,AbraaoAlves/ionic,jhlee8804/ionic,alan-agius4/ionic,cambronjay/ionic,AbraaoAlves/ionic,jhlee8804/ionic,joshesp/ionic,cambronjay/ionic,dennybiasiolli/ionic,alan-agius4/ionic,alan-agius4/ionic,jarrodkoch/ionic,janglednerves/ionic,driftyco/ionic,dennybiasiolli/ionic,AbraaoAlves/ionic,jarrodkoch/ionic,TillaTheHun0/ionic,manucorporat/ionic,joshesp/ionic,jhlee8804/ionic,manucorporat/ionic,brianespinosa/ionic2-sass,jhlee8804/ionic,TillaTheHun0/ionic,jhlee8804/ionic,alan-agius4/ionic,janglednerves/ionic,manucorporat/ionic,manucorporat/ionic,driftyco/ionic,joshesp/ionic,janglednerves/ionic,driftyco/ionic,dennybiasiolli/ionic,TillaTheHun0/ionic,janglednerves/ionic,alan-agius4/ionic,alan-agius4/ionic,cambronjay/ionic,TillaTheHun0/ionic,dennybiasiolli/ionic,janglednerves/ionic,AbraaoAlves/ionic,jarrodkoch/ionic,driftyco/ionic,AbraaoAlves/ionic,manucorporat/ionic,jarrodkoch/ionic,joshesp/ionic,dennybiasiolli/ionic,cambronjay/ionic,cambronjay/ionic