accounts/abi/bind, cmd/abigen: dedup structs, exclude patterns

eth: fix accidental nil panic on nil errors

eth: manually convert errors to strings on the trace API (json cannot)

accounts/abi/bind: fix double pointer in generated code

accounts/abi/bind: Go ABI binding generator

core, core/vm, tests: changed the initialisation behaviour of the EVM

This commit serves as a temporary workaround for enabling the jit until
the block customisation PR is merged in.

Implemented the following block debugging RPC calls

* Block(RLP)
* BlockByFile(fileName)
* BlockByNumber(number)
* BlockByHash(hash)

The EVM is now initialised with an additional configured object that
allows you to turn on debugging options.

Strip extraneous carriage return from end of entered password

rpc/http: improve request handling

The EVM was previously initialised and created for every CALL, CALLCODE,
DELEGATECALL and CREATE. This PR changes this behaviour so that the same
EVM can be used through the session and beyond as long as the
Environment sticks around.

accounts/abi: Fixed bytes input accept []byte and variable input support

eth, miner: fetch pending block/state in on go (data race)

accounts/abi: handle the "constant" modifier for functions

core: fixed various typos

core, eth: replace reorganiz with reorganis

core: various typos

eth: various typos

Fixed up `[]byte` slice support such that `function print(bytes input)`
accepts `[]byte` as input and treats it as 1 element rather than a slice
of multiple elements.

Added support for variable length input parameters like `bytes` and
`strings`.

cmd/utils, internal/debug: fixes for debugging