[Linux] SMTK uses system Boost instead of superbuild boost
The found boost include & libs are pointing to the system Boost package which is a big problem since system boost is 1.54 and smtk requires 1.60
Note: Remus properly used the superbuild boost.
OS details:
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty