feat(text-input): added the form ng control status classes to ion-input
feat(text-input): added the form ng control status classes to ion-input

references #678

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