2015.09.23, Version 1.7.5 (Stable) Changes since version 1.7.4: * unix: Support atomic compare & swap xlC on AIX (nmushell) * unix: Fix including uv-aix.h on AIX (nmushell) * unix: consolidate rwlock tryrdlock trywrlock errors (Saúl Ibarra Corretgé) * unix, win: consolidate mutex trylock errors (Saúl Ibarra Corretgé) * darwin: fix memory leak in uv_cpu_info (Jianghua Yang) * test: add tests for the uv_rwlock implementation (Bert Belder) * win: redo/fix the uv_rwlock APIs (Bert Belder) * win: don't fetch function pointers to SRWLock APIs (Bert Belder)