Added code-block language.
Added README.rst.
Added flattr and donate buttons.
'docs/conf.py' gets version from 'synthetic.__version__'.
0.4.2:
    Added README.rst.
    Added code-block language.
    Added flattr and donate buttons.
    'docs/conf.py' gets version from 'synthetic.__version__'.
Merge branch 'release/0.4.2'