Fixed Managed memory leak.
Fixed Managed memory leak.

Contrary to my first intuition, Managed objects are deleted
through a Managed pointer which means that all our Managed subtypes
were leaking their members. I spotted this while working
on the gateway.
Managed also had all it's members public with no reason.

Change-Id: Icc06e06f9b611457ab4cde0cedf9dd884babdd28
Reviewed-on: http://gerrit.aldebaran.lan/69051
Tested-by: gerrit
Reviewed-by: hcuche <2a0975cc082cedff4d4350e3f6ec187146151bc6@aldebaran.com>
Reviewed-by: jlamotte <70353e7b0c7d18b7fc75605daf0ccba69fcd3222@aldebaran.com>
Tested-by: jlamotte <70353e7b0c7d18b7fc75605daf0ccba69fcd3222@aldebaran.com>

aldebaran/libqi,aldebaran/libqi,aldebaran/libqi