Merge branch 'release/0.5'
added MIT license as a LICENSE.txt file
updated setup.py, README and MANIFEST
fixed the tests
refactored, fixed and tested ConfigScope
tested, refactored and fixed chained config scope evaluation. fixes #63
fixed behaviour of empty ConfigScope chains. fixes #50
added special handling for updates to 'seed'. fixes #61
changed behaviour of named config scopes again to reuse chained execution code.
mentioned the Run object in the docs. Fixes #39
updated docs
added flake8 to tox and fixed detected problems
added .travis.yml and updated README to have more batches
switched to a ReStructuredText README
small fix in README
Merge branch 'develop'