Add lintOptions to disable InvalidPackage
Add lintOptions to disable InvalidPackage

Seems to be benign; 2 errors flagged in
okio-1.6.0 and retrofit-2.0.0-beta2 when we ran:
./gradlew build connectedCheck

clkim/demoKotlinAndroidDev2016,clkim/demoKotlinAndroidDev2015,clkim/demoKotlinAndroidDev2016,clkim/demoKotlinAndroidDev2015,clkim/demoKotlinAndroid2017,clkim/demoKotlinAndroid2017