Improved console error handling

Remove personal.deleteAccount from RPC interface

Add tests for uncle timestamps and refactor timestamp type

user agent messages were dumped in some cases

fdtrack: hide message

rpc/comms: reconnect ipc client after write error

p2p, p2p/discover: small fixes 

This reverts commit 5c949d3b.

eth: fix an issue with pulling and inserting blocks twice

PR #1621 changed Table locking so the mutex is not held while a
contested node is being pinged. If multiple nodes ping the local node
during this time window, multiple ping packets will be sent to the
contested node. The changes in this commit prevent multiple packets by
tracking whether the node is being replaced.

Might solve #1579

cmd/geth: Fix chain purging from cmd line

crypto: remove obsolete code

Switch from Coveralls to Codecov code coverage service

Updated README, Added CONTRIBUTING

core, miner: write miner receipts

rpc/api: return boolean value for eth_submitHashrate

rpc: update the xeth over RPC API to use the success/failure messages

GPO update

rpc/api: format pendingTx response. Fixes #1648