improved error message when create a new user
change add database to go to change database view instead of list view
change uniqueness of credential to be together with database
fix migration
included environment in physical model
new migration
model many to many
new command fix_user_roles_permissions
fix capacity column size in database list
Merge branch 'master' of github.com:globocom/database-as-a-service
change many to many filter
Merge branch 'master' of github.com:globocom/database-as-a-service
Merge branch 'ft_user_based_roles'
testcase to model Environment
Merge branch 'master' of github.com:globocom/database-as-a-service
testcase to model Environment
fix testcase
fix testcase
fix testcase
test fix