Merge branch 'fix-ipcs-q-fallback' into travis

* fix-ipcs-q-fallback:
  travis-ci: abort if make check fails
  ipcs: fix memleak in ipc_*_get_info functions
  ipcs: fix ipc_sem_get_info fallback case
  ipcs: fix ipc_shm_get_info fallback case
  ipcs: fix ipc_msg_get_info fallback case
  tests: add basic test case for ipcs -m -i n
  tests: add basic test case for ipcs -s -i n
  tests: add basic test case for ipcs -q -i n
  tests: quote generated arguments for ipcrm
  ipcs: cleanup jumplabel stlyes
travis-ci: add make distcheck