Updating gitignore file
Denoting no changes in 0.2 in change log
Rename change log to CHANGES.rst for GitHub.
Back to development: 0.3
Add objectify function to convert dicts and appstructs back into SQLAlchemy objects.
Merge pull request #26 from davidjb/master

Add 'objectify' function to convert dicts and appstructs back into SQLAlchemy models