fix(button-fab): removed min-width to fix icon position on iOS
fix(button-fab): removed min-width to fix icon position on iOS

fixes #461

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