Adding whatsapp support

Closes #282

Adding whassup pom

First iteration whatsapp backup

Use snapshot version of maven-android-plugin

https://github.com/jayway/maven-android-plugin/pull/216

Need to use our own SNAPSHOT

Close cursor

Show errors in log

Output lint results to console

API changes

Ignore MissingQuantity issues

But whatsapp messages in separate folder
Wrong folder name
Merge pull request #314 from jberkel/whats-app

Whats app