RPC Fabian fixes

Defaults to 0, which is then set to default values in XEth

print nonenumerable properties of object in geth console && proper printing BigNumbers

Read most protocol params from common/params.json

* Add params package with exported variables generated from
  github.com/ethereum/common/blob/master/params.json
* Use params package variables in applicable places
* Add check for minimum gas limit in validation of block's gas limit
* Remove common/params.json from go-ethereum to avoid
  outdated version of it

* GetCode
* GetNonce
* GetStorage
* GetBalance

The uncle rewards were changed in the block processor. This change will
reflect those changes in the miner as well.

ab81bf2 go fail

git-subtree-dir: tests/files
git-subtree-split: ab81bf28d6157657b0a1c0d598785f1ed23fdbb1

5f8a010 go fials
6f7924a add cppjit fail
c21f368 update genesis test
de7266b update js example test

git-subtree-dir: tests/files
git-subtree-split: 5f8a0103c0456f9467b402fde3db4bcde345d53b