bitcoin/bitcoin — pull request #4400 by Diapolo (2014-06-24 12:40:15+00:00)
Title: add GetRandBytes() as wrapper for RAND_bytes()

- add a small wrapper in util around RAND_bytes() and replace with
GetRandBytes() in the code to log errors from calling RAND_bytes()
- remove OpenSSL header rand.h where no longer needed