class definition in daal_atomic_int.h

[Ethanlm]

in the following definition,
template
class DAAL_EXPORT Atomic{
xxx
};

the return type of inc() and dec() should be "dataType" instead of "int"

[Ethanlm]

And I think the following definitions of
template<> class DAAL_EXPORT Atomic {};
and
template<>class DAAL_EXPORT Atomic<size_t> {};
are not necessary

[iburyl]

Changes added to daal_2017_update1 branch. Thank you