Merge pull request #371 from swampie/master

#370 nullable username on facebook link/login
downgrade version for 0.8.2
Merge pull request #373 from swampie/0.8.2

downgrade version for 0.8.2
Update application.conf
#374 prevent modification of private fields
Merge branch 'master' of github.com:swampie/baasbox
Merge remote-tracking branch 'baasbox/master'
#374 prevent modification of private fields