Merge pull request #97 from aavenel/cosmetics

Small changes for UI
Merge pull request #98 from aavenel/flask0.9

Flask0.9
Bugfix#92 : error when deleting an user
Merge pull request #101 from aavenel/bugfix92

Bugfix#92 : error when deleting an user
Merge branch 'master' of git://github.com/spiral-project/ihatemoney
Merge pull request #96 from aavenel/master

New feature : Settle the bill
Merge branch 'master' of git://github.com/spiral-project/ihatemoney