Dev mode enabled some debugging flags such as:

* VM debugging mode
* Simpler proof of work
* Whisper enabled by default
* Datadir to a tmp datadir
* Maxpeers set to 0
* Gas price of 0
* Random listen port

eth/downloader: fix race causing occasional test failure

honors datadir when attaching

fix block time issue

currently, under normal circumstances, you always set the timestamp to previous.Time() + 1.
credits to https://www.reddit.com/r/ethereum/comments/3jcs5r/code_avg_block_time_vs_difficulty_adjustment/cuoi4op

style

Add TestBcForkUncle tests & update JSON files

core: improve block gas tracking

core: Filter on addresses should work as an OR not an AND.

Pull in ethash and go-isatty updates

Fixes build on OpenBSD.

rpc: add receiptRoot to getBlock* responses

build: avoid -X separator warning with Go >= 1.5

Fixes #1679

rpc: return error code for eth_getWork when no work ready

rpc/api allow empty password

eth: implement eth/62 synchronization logic

common/compiler: fix #1598, expose solidity errors

add missing shh_getMessages to RPC mappings

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