Support for boost version less then 1.54 -- disbale move in config union
Support for boost version less then 1.54 -- disbale move in config union

[Bug/Feature]   Boost < 1.54 doesn't support rvalues in boost::any, better rvalues tests
[Cause]         ConfigUnionTest doesn't pass if compiled with boost 1.51
[Solution]      Changes in libConfig; Disable moving in union
[Verification]  Build, install, run tests

Change-Id: I3bb6af655fa9393bfab66d535705fa252ecf6174

Samsung/vasum,Samsung/vasum,Samsung/vasum,Samsung/vasum