Following big improvements were made to make the development more easier:

* Created the 'setup.py' script to support native Python packaging with setuptools and pip.
* There is a new target 'make develop', that will bootstrap the Python virtual environment, install all production and development requirements and install the whole project in editable mode.
* Revised the dependency installation targets.
* Big facelift of makefile help target.
* Added target for build environment cleanup.
* Added target for initialization of new translations of Mentat and Hawat.
* Added target for building locally Python packages.
* Added target for building locally Debian packages.
* Updated documentation page for developers.

(Redmine issue: #4216,#3387,#3361)

(Redmine issue: #3387)

Mart of the files in repository will be published separatelly via Python wheels and PyPI. Mentat core deployment directory was moved into subdirectory, so that other deployment subdirectories may be in deploy directory. (Redmine issue: #3387)

This is the initial project release. It works, however it should still be considered as alpha release and work in progress. Couple of known issues:
* missing configuration validation
* missing documentation
* missing modules
* only partially working unit tests, not enough coverge of unit tests