1.1.0

This release is focused on bringing new features, such as new channels and activators, and also minor fixes.

Features:
#174 - Add Viber channel
#176 - Add Amazon lex activator

Fixes:
#178 - fixes old unexpected behavior of google-actions. Implement more fail-safe behavior.

Dependencies versions changes:
jackson 2.10.0 -> 2.12.3