Merge branch 'bug/3019' of /home/git/repositories/micah/leap_platform into develop
restart stunnels if /etc/hosts is changed (#3031)

Due to the fact that /etc/hosts is modified in the early stage setup.pp run and
the stunnel service is not deployed on an initial puppet run, we cannot simply
override the Service['stunnel'] but instead need to trigger a restart through
an exec calling the init script that first tests to see if it is present.

Change-Id: I6bf5dfece9ecbdb8319747774185dec50d5a55f6