core: refactor validator and fix light node sync (#25)

Remove custom Dexon validator by adding a new `ValidateWitnessData`
method into the validator interface. This allow us to properly detect
know blocks. This also allow other gdex "light" client to sync
compaction chain. Also, setup a standalone RPC node for handling RPC
reqeusts.

1 files changed, 1 insertions, 0 deletions

diff --git a/core/chain_makers_test.go b/core/chain_makers_test.go
index cb01ae0c9..0fb995f5f 100644
--- a/core/chain_makers_test.go
+++ b/core/chain_makers_test.go
@@ -148,6 +148,7 @@ func ExampleGenerateChainWithRoundChange() {
 			},
 			addr1: {
 				Balance: big.NewInt(1000000),
+				Staked:  big.NewInt(0),
 			},
 		},
 	}