Fix regression with backup and restore tasks
Merge branch :  Fix homepage and invite tests
updated minds
add default args
remove glyphicons
Merge branch 'master' of github.com:fgirault/smeuhsocial into v1.5
Upgrade to Django 1.7
Hardcode User modal class

in order to avoir an AppRegistryNotReady error
as described at
https://docs.djangoproject.com/en/1.7/ref/applications/#troubleshooting
Rename messages app to messaging

in order to avoid a name clash with Django 1.7