Working service with Estimotes discovery
Estimote discovery and notification process, right now It displays a default notification with a default that opens the Civico App.

Also added some changes to the .sample files to get the Notifications working and the case of a ndk in a dir without a environment variable.
Display only one notification if a beacon enters the region. Also a little hack that make the notification open the app uses the module, not a burned app string id.
Minor code cleanup and annoying repeatedly notification fixing.