serde_cbor 0.10.2

CBOR support for serde.
Documentation
# Contributing to Serde CBOR
Thanks for your interest!
There are many ways to help:

* write an issue about a problem you encountered
* submit a pull request
* add documentation and examples

## Pull Requests

Code should be easy to understand and documented.
For new features and fixed bugs please add a test to one of the files in `test/`.
The tests are run on Travis CI to catch regressions early.
Format your code with `cargo fmt` before committing.
Currently Serde CBOR does not contain `unsafe` code and I would like to keep it this way.

## Making a Release

* [ ] Make sure the crate compiles and all tests pass.
* [ ] Optional Test that the fuzzer works and fuzz the crate for some time.
* [ ] Write a list with all changes made since the last release
* [ ] Increment the version number in `Cargo.toml` and the `README.md`. Bugfixes increase the patch version while new features or an increased minimum Rust version require a new minor version.
* [ ] Check that the file `examples/readme.rs` and the example from the `README.md` match.
* [ ] Commit the changes.
* [ ] Add a git tag with the new version number:
    `git tag "v42.0.2"`
* [ ] Push the changes: `git push --tags`
* [ ] Run `cargo publish`
* [ ] Add a new release to GitHub with a list of changes.