Eliminated login requirement during InvitationCode validation:
A user who receives invitation email likely doesn't have an account yet, so we shouldn't force them to the LOGIN_URL to verify their code.  Instead, the developer now has the freedom to choose where to send the user (for example, to a registration page).  As part of this update, Anonymous users are now prevented from poaching a private InvitationCode that doesn't belong to them.

Added specificity and docstrings to tests.py

Added a test scenario for public invitation codes
Merge pull request #51 from mypetyak/master

Eliminated login requirement during InvitationCode validation:
Update example to bootstrap v3.
Improved default settings fallback
Merge pull request #54 from palm86/patch-1

Some settings in project's settings files were ignored
Bump version to v2.1.0.
Add python 3.4 back to travis.yaml.
Merge pull request #2 from joshuakarjala/master

Pull in latest from official project