TODO

Hashes in db should be stored as :db.type/bytes instead of :db.type/string.
Add search to explorer.
Move datom test fixtures into data files.
Remove old codec cruft.
[ ]Import full blockchain and perf-tweak it.
- Immediate goal here is to provide a simple way for people to host a fully-indexed blockchain locally.
Expose db with http api so that chaingun can be integrated into other tools.
Create db function for looking up byte-array values instead of reimplementing the java.util.Arrays/equals match every time.
Create some sort of wrapper/presenter for exposing entity-maps in chaingun.explorer where all byte-array values are converted to hex strings so I don't need to manually bytes->hex myself.
~~Since the new codec style tries to build entity-map-like structures, take advantage of that in constructors by merging decoded codecs instead of plucking keys a la cart.~~ Update: I tried this but I like seeing every key in a constructor.

Some other goals

Replicate satoshi-client bugs, but first implement naively.
Maintain a test-suite that's a union of the suites of other implementations, particularly satoshi-client and BitcoinJ.