Implemented callbacks' propagation for sensors API

Jira issue: WP-738
Fixed bug in HTTP driver's configureSensor method

Jira issue: WP-738
Fixed callback propagation issue in configureSensor when method is called by a sensor attached to
Arduino

Jira issue: WP-738
Merge pull request #459 from glatorre/WP-738

Fixed callbacks' propagation for sensors API [WP-738]