core: added a running flag to prevent panics in the chainmanager

core: added default genesis block

When a user runs a freshly setup geth w/o a database initialised the
default genesis block is decoded and inserted in to the database.

Old transaction after resend was not removed from pool

Improved error handling for NewTransactionFromBytes

The running flag will determine whether the chain manager is still
running or not. This will prevent the quit channel from being closed
twice resulting in a panic. This PR should fix this issue.

Closes #1559

core/state: Set log index. Closes #1226

rpc/api: add missing autocomplete commands

remove elliptic.P224 usage

Fedora/RedHat distros comply with US patent law and remove this curve,
which makes it impossible to run ethereum with distro provided Golang.

File crypto/ecies/README claims it is unsupported anyway.

rpc: to in eth_call no longer required. Fixed eth_estimateGas

eth, eth/downloader: don't report stall if fetcher filled the block

tests: updated

integrated review comments

FreeBSD support

Etherbase defaults to first account even if it is created during the session

all: fix license headers one more time

bugfix, pending transaction was resend with new gas price/limit but not removed from transaction pool

crypto: fix build with Go 1.5

core: genesis extra data field fix

params: reduce extra data to 32 bytes & target block time

core: fixed genesis write out to write only canon number

eth: set default miner extra to client name

core: 5 ether block reward

cmd/geth, core, eth: Version 1.0.0

ethdb, trie: removed RLE compression

core: check genesis block before writeout