Merge with develop branch of main OAI repository.

cmake_targets/CMakeLists.txt

cmake_targets/build_oai

cmake_targets/epc_test/CMakeLists.template

cmake_targets/lte-simulators/CMakeLists.txt

cmake_targets/oaisim_build_oai/CMakeLists.template

cmake_targets/oaisim_mme_build_oai/CMakeLists.template

cmake_targets/oaisim_noS1_build_oai/CMakeLists.template

cmake_targets/s1c_mme_test/CMakeLists.template

cmake_targets/tools/build_helper

cmake_targets/tools/init_nas_nos1

common/config/config_cmdline.c

common/config/config_load_configmodule.c

common/config/config_load_configmodule.h

common/config/config_userapi.c

common/config/config_userapi.h

common/config/libconfig/config_libconfig.c

common/utils/T/T_defs.h

common/utils/T/T_messages.txt

common/utils/itti/intertask_interface.c

common/utils/itti/intertask_interface.h