Added message queue.
Merge pull request #3 from dkorolev/mq

Added message queue.
[android] Generate unique ID which is persistent until user uninstalls the app.
[android] Basic onResume/onPause events with example.
Code reformatting
Fixed example
Add “A:” prefix for Android IDs
Merge pull request #4 from KnowSheet/review

Unique id support
[android] Debug Mode support
Added cereal lib
Merge pull request #5 from KnowSheet/review

Cereal headers & Debug mode for Android
Pass JSON strings to C++
Fixed compilation issues
[android] Retrieve all device IDs
Code reindenting
Merge pull request #6 from KnowSheet/review

Prepare JSON passing & get all device ids
[android] Made statistics path more unique
Fixed Cereal compilation bug on Android
Basic integration with Cereal for transport layer
[android] Fixed warnings in some tests