Merge branch 'travisFix'
Update targetSdkVersion to kitkat
Fixed Aerogear Crypto Java dependency scope
Add type on PropertyNotFoundException
Support push registration for multiple categories
Merge branch 'push_registration_multiple_categories' of https://github.com/danielpassos/aerogear-android
Adding security deps
Adding in Encryption Interfaces
Adding Encryption Service Interfaces
Creating Factory methods and interfaces for encryption