avoid returning with partially constructed PrivateClient, causing segmentation fault during destruction
avoid return partical constructed PrivateClient during LogIn
Changed CMake variable from MaidsafeTesting to INCLUDE_TESTS.
Merge pull request #3 from maqi/MAID-36_PrivateClientTest.FUNC_CreateDuplicateAccount

MAID-36 avoid returning with partially constructed PrivateClient
linking to protobuf directly
Merge pull request #6 from Fraser999/MAID-460

Changed CMake variable from MaidsafeTesting to INCLUDE_TESTS.
Minor update to CMakeLists.txt.
Merge pull request #8 from Fraser999/MAID-500

Minor update to CMakeLists.txt.
Merge pull request #7 from ustulation/MAID-485_protobuf_update

MAID-485: linking to protobuf directly