refactor(button): button[clear] :hover
refactor(button): button[clear] :hover

Closes #145

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