Fix foursquare provider image_url problem
If user denies access, redirect
Merge pull request #3 from alexef/fix

If user denies access, redirect - #2
Redirect to an url, not a string
Use LoginManager unauthorized() method - better failure handling.
Merge pull request #4 from alexef/fix2

Redirect to an url, not a string
Update flaks-security dependency to handle mongoengine import issue
Fix QCombination import
update a typo and a few out-of-date blueprint references
Merge pull request #6 from dannyclark/develop

update a typo and a few out-of-date blueprint references
Update CHANGES
Bump version number to 1.6.1