Health Thermometer Profile patches

This is a new set of patches wich implement most of the features in
HTP. GATT reconnections are the only missing feature up to now.

[PATCH 1/6] Implement SetProperty D-Bus method
[PATCH 2/6] Confiure C.C.C descriptor during the thermometer configuration
[PATCH 3/6] Process measurements interval indication
[PATCH 4/6] Fix possible null pointer deference
[PATCH 5/6] Fix access to an invalid memory sector if time stamp is supported
[PATCH 6/6] Use system types instead of GLIB ones.