develop_integration_w22 into develop

Summary of changes:

• UE:
  • TDD multiplexing
  • TDD autotest
  • bug fixes: power control management for Msg3, logging
• eNB:
  • CCE allocation fixes
  • S1U port in some configuration files set to 2152 (was 2153)
• support for RedHat enterprise linux 7 and derivatives (CentOS, ...) (work provided by RedHat)