added android SDK to gitignore
added android SDK to gitignore

Macadamian/Cordova-BlinkUpSample,Macadamian/Cordova-BlinkUpSample,Macadamian/Cordova-BlinkUpSample,Macadamian/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample,Macadamian/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample,Macadamian/Cordova-BlinkUpSample,dlanthier-mac/Cordova-BlinkUpSample