updating travis to latest android sdk tools
updating travis to latest android sdk tools

vishals79/appium-uiautomator2-driver,lukeis/selendroid,anandsadu/selendroid,koichirok/selendroid,masbog/selendroid,SpencerMalone/selendroid,DominikDary/selendroid,frolovs/selendroid,0x1mason/selendroid,christiannolte/selendroid,selendroid/selendroid,sri096/selendroid,mach6/selendroid,luohaoyu/selendroid,selendroid/selendroid,koichirok/selendroid,uchida/selendroid,luohaoyu/selendroid,ghrud92/selendroid,smiklosovic/selendroid,smiklosovic/selendroid,PrakashGoulla/selendroid,sri096/selendroid,rasata/selendroid,lukeis/selendroid,frolovs/selendroid,smiklosovic/selendroid,vishals79/appium-uiautomator2-driver,uchida/selendroid,appium/selendroid,PrakashGoulla/selendroid,DominikDary/selendroid,selendroid/selendroid,masbog/selendroid,koichirok/selendroid,frolovs/selendroid,christiannolte/selendroid,appium/selendroid,SpencerMalone/selendroid,koichirok/selendroid,ghrud92/selendroid,VikingDen/selendroid,VikingDen/selendroid,asm89/selendroid,luohaoyu/selendroid,anandsadu/selendroid,mach6/selendroid,lukeis/selendroid,ghrud92/selendroid,christiannolte/selendroid,mach6/selendroid,anandsadu/selendroid,uchida/selendroid,sri096/selendroid,selendroid/selendroid,PrakashGoulla/selendroid,vishals79/appium-uiautomator2-driver,lukeis/selendroid,vishals79/appium-uiautomator2-driver,appium/selendroid,asm89/selendroid,masbog/selendroid,appium/selendroid,rasata/selendroid,selendroid/selendroid,rasata/selendroid,anandsadu/selendroid,0x1mason/selendroid,0x1mason/selendroid,mach6/selendroid,PrakashGoulla/selendroid,SpencerMalone/selendroid,masbog/selendroid,rasata/selendroid,anandsadu/selendroid,SpencerMalone/selendroid,sri096/selendroid,luohaoyu/selendroid,koichirok/selendroid,asm89/selendroid,ghrud92/selendroid,VikingDen/selendroid,0x1mason/selendroid,SpencerMalone/selendroid,smiklosovic/selendroid,masbog/selendroid,DominikDary/selendroid,uchida/selendroid,christiannolte/selendroid,ghrud92/selendroid,uchida/selendroid,appium/selendroid,frolovs/selendroid,mach6/selendroid,smiklosovic/selendroid,VikingDen/selendroid,frolovs/selendroid,asm89/selendroid,lukeis/selendroid,vishals79/appium-uiautomator2-driver,luohaoyu/selendroid,PrakashGoulla/selendroid,christiannolte/selendroid,asm89/selendroid,rasata/selendroid,sri096/selendroid