Advbumpversion

- Add ``independent`` flag for version parts. This part is not reset when other parts are incremented. For example, for
build numbers
- Add EXAMPLES.rst with several test cases
- Add new test cases: update version and build date, build number, annotated tags, test cases for almost all cases in
EXAMPLES.rst

- Fix a bug with PR117: allow multiple config sections per file. Add a test case.

- Compatibility with Travis CI
- Publish on PyPi

Fork of fork. The project is renamed **advbumpversion** to avoid confusion with other forks.
The following Push requests are merged in this project:

- `PR8 <https://github.com/c4urself/bump2version/pull/8>`_ from ekoh: Add Python 3.5 and 3.6 to the supported versions: Add Python 3.5 and 3.6 to the supported versions
- `PR117 <https://github.com/peritus/bumpversion/pull/117>`_ from from chadawagner: allow multiple config sections per file
- `PR136 <https://github.com/peritus/bumpversion/pull/136>`_ from vadeg: Fix documentation example with 'optional_value'
- `PR138 <https://github.com/peritus/bumpversion/pull/138>`_ from smsearcy: Fixes TypeError in Python 3 on Windows
- `PR157 <https://github.com/peritus/bumpversion/pull/157>`_ from todd-dembrey: Fix verbose tags

I consider this project stable enough to raise the version to 1.0.0.

- Added support for signing tags (git tag -s)
thanks: Californian (`6 <https://github.com/c4urself/bump2version/pull/6>`_)

- Added compatibility with `bumpversion` by making script install as `bumpversion` as well
thanks: the-allanc (`2 <https://github.com/c4urself/bump2version/pull/2>`_)