This is a major one, containing two larger features, that require some changes
in the configuration format. This release is fully backwards compatible to
*v0.4.1*, however deprecates two uses that will be removed in a future version.
- New feature: `Part specific configuration`
- New feature: `File specific configuration`
- New feature: parse option can now span multiple line (allows to comment complex
regular expressions. See re.VERBOSE in the [Python documentation](https://docs.python.org/library/re.htmlre.VERBOSE) for details, also see [this testcase](https://github.com/peritus/bumpversion/blob/165e5d8bd308e9b7a1a6d17dba8aec9603f2d063/tests.pyL1202-L1211) as an example.
- New feature: `--allow-dirty` [42](https://github.com/peritus/bumpversion/pull/42)
- Fix: Save the files in binary mode to avoid mutating newlines (thanks jaraco [45](https://github.com/peritus/bumpversion/pull/45)
- License: bumpversion is now licensed under the MIT License [47](https://github.com/peritus/bumpversion/issues/47)
- Deprecate multiple files on the command line (use a `configuration file` instead, or invoke `bumpversion` multiple times)
- Deprecate 'files =' configuration (use `file specific configuration` instead)