Tunacell

Fixed
- Set appropriate initialisation parameters for the Ornstein Uhlenbeck process (OUParams)
- Remove deprecated argument names at simulation initialisation

Added
- README in reStructuredText, called in setup for the long description

Removed
- README.md replaced by README.rst

Added
- __main__ module and its entry point to print out tunacell version `tunacell -V`, or `python -m tunacell -V`
which simplifies the cumbersome `python -c "from tunacell import __version__; print(__version__)"`

Fixed
- Parser.info_samples() when no sample in Parser instance
- hidden files under the `containers` folder are skipped (not retained as a container)

Changed
- bin/tunasimu script is moved as a module: tunacell/simu/run.py and its new entry point is properly declared in setup.py
(call to executable `tunasimu` still valid)

Removed
- Parser.iter_cells, Parser.iter_colonies, Parser.iter_containers methods (were moved to Experiment instances)

Added
- supersegger module to read directly from supersegger output
- Travis CI support
- CHANGELOG
- documentation source, hosted by readthedocs at [tunacell.readthedocs.io](https://tunacell.readthedocs.io/en/latest/)

Changed
- Use analysis module instead of everything in text module
- Metadata yaml and csv syntax
- cell identifiers are kept to their original type (not translated to str)

Fixed
- Root cells can point to non-zero label

Added
- tunacell API
- 10-minute tutorial script
- analysis example scripts

Deprecated
- Parser.iter_cells, Parser.iter_colonies, Parser.iter_containers methods are now attached to Experiment instances