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`.

As we aren't really using the standarized SHA-3

Added support for fixed size and arbitrary length byte arrays to be
marshallable in fixed size (typed) byte slices.

Removed old unmarshalling of return types: `abi.Call(...).([]byte)`.
This is now replaced by a new syntax:

```
var a []byte
err := abi.Call(&a, ...)
```

It also addresses a few issues with Bytes and Strings and can also
handle both fixed and arbitrary sized byte slices, including strings.

Implementation of basic event parsing and its input types. This
separates methods and events and fixes an issue with go type parsing and
validation.

Added calling mechanism and return value parsing

Changed field `input` to new `inputs`. Addad Hash and Address as input
types.

Added bytes[N] and N validation

I forgot to update one instance of "go-ethereum" in commit 3f047be5.

All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".