Example of how to use std::hash_map
 Please enter the commit message for your changes. Lines starting
use std::unordered_map for blockchain + minor fixes
- hashing class defined in Common.h (credit JW Ratcliff)
- fix m_stack/m_temp in VM clang sections
- explicit namespace for std::make_pair calls
Merge pull request #78 from zelig/develop

std::unordered_map for blockdetail hash