Update dependency
Update CHANGES
Bump version number to 1.5.4
Change how the configuration dictionary is updated. Fixes #21 and should cover #18 as well.
Use facebook profile name as backup display name if username is not specified. Fixes #20
Update CHANGES
Fix release date
Bump version number to 1.5.5
Add travis file
Merge branch 'develop' of github.com:mattupstate/flask-social into develop