Made some C tests run with valgrind, corrected two found library

Makefile

lib/c/2014/Makefile

lib/c/2014/labcomm2014_decoder.c

lib/c/2014/test/test_labcomm.c

lib/c/2014/test/test_labcomm_basic_type_encoding.c

lib/c/2014/test/test_labcomm_copy.c

lib/c/2014/test/test_labcomm_pthread_scheduler.c

lib/c/2014/test/test_labcomm_renaming_decoder.c

lib/c/2014/test/test_labcomm_renaming_encoder.c

test/Makefile

test/relay_gen_c.py