Add Jessica B. Hamrick as a CONTRIBUTOR
Version 0.3.1

Better support to local data packages. Local paths do not behave
in the same way as urls (trailing backslash is different). This
version makes datapackage work in a more common sense way for
local data packages.
Fix bad email/web test
Merge pull request #15 from jhamrick/add-setters

Add setters (and some getters) for datapackage properties
Rename test.py to test_datapackage.py
Flesh out version verification
Add methods to bump the major, minor, and patch versions
Move SemanticVersion namedtuple constructor to module scope
Also move valid regex into module scope
Move licenses and sources code into their own files
Start working on a generic resource object
Add tests for getting/setting resource data
Add tests for getting/setting resource paths
Add tests for getting/setting resource url
Add name setter and related tests
Add format setter and related tests
Add setter for mediatype and associated tests
Add encoding setter and tests
Add methods for guessing the resource format and mediatype