setServiceConfiguration - reload only services

Added a parameter to reload only service instances without
reinitialising the whole module

Jira issue: WP-933
Merge pull request #78 from smonteleone/WP-933

setServiceConfiguration - reload only services
Added links to sensors and actuators tests

Jira issue: WP-1043
Merge pull request #80 from glatorre/WP-1043

Added links to sensors and actuators tests