Merge pull request #2 from arobson/master

Bug fixing environment variable translation
Merge pull request #3 from arobson/master

Support both config files and defaults. Add support for deep merging graphs.
Merge pull request #4 from arobson/master

Bug fix to correct child properties over-writing matching root property names.
Making sure to teardown in the same scope
Splitting up specs across functionality changes
Adding ability to configure with object literal
Support removing prefix from environment vars
Making prefix removal case insensitive
docs for prefixing and object literal config changes
Merge pull request #5 from digitalBush/environment-prefix

Environment prefix
Version bump