Use RFC6979 for test PRNGs #215

1. 
   sipa commented at 0:14 am on February 14, 2015: contributor

   Around 10% slower.
2. 
   sipa commented at 11:32 pm on February 14, 2015: contributor

   Added a commit that changes the seed to a 16-byte hex, avoiding the need for a 64-bit format specifier.
3. sipa cross-referenced this on Feb 23, 2015 from issue Initial gcov work by cbatson
4. Use RFC6979 for test PRNGs 02efd06554
5. sipa force-pushed on Feb 23, 2015
6. use 128-bit hex seed 8956111802
7. sipa force-pushed on Feb 23, 2015
8. 
   gmaxwell commented at 8:37 pm on February 23, 2015: contributor

   ACK.
9. sipa merged this on Feb 24, 2015
10. sipa closed this on Feb 24, 2015

    ---

11. sipa referenced this in commit f789c5baf2 on Feb 24, 2015

Contributors
sipa gmaxwell