Added hashing function for SourceDicts
Added explicit type for SourceDict caches
Cabal version fix
This is better actually
Merge pull request #13 from anchor/add_hash_source

Added hashing function for SourceDicts
derived Ord instance for Addresses
might as well add hashable too
That is an important import
Merge pull request #14 from anchor/add-ord-address

Add ord address
Merge branch 'master' of https://github.com/anchor/vaultaire-common into time-offset