Adding option to enable SSL to horizon

Adding a new option "CONFIG_HORIZON_SSL" if set to 'y'
will cause apache to open ssl communications to port 443
https://bugzilla.redhat.com/show_bug.cgi?id=903813

Change-Id: I6a9960706f35823e7fa9a1913274bbfc51d6b99a
Merge "Adding option to enable SSL to horizon" into folsom