1.0.0

New stuff

• [new spec] size has a new format, can now grow up to 64 bits of length.
• [new spec] Added uint64 and int64 types.
• Performance upgrades.

Breaking changes:

• Due to changes to size spec, this version is only interoperable with other 1.0+ implementations.
• Decoder now accepts a &[u8] instead of consuming a Vec<u8>.
• Encoder::end now returns a Vec<u8> instead of Result<Vec<u8>, Error>.
• Decoder::bytes now returns a Result<&[u8], Error> instead of Result<Vec<u8>, Error>.
• Decoder::string now returns a Result<&str, Error> instead of Result<String, Error>.

The changes to bytes / string now allow use string / byte slices to compare values without the need to allocate data on the heap.