docs(demos): disable swipe to go back on non-menu pages
docs(demos): disable swipe to go back on non-menu pages

Closes #363

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