also remove the `read().splitlines()` pattern from csv.reader usage,
as it's redundant. also add .vscode to gitignore to accomodate my
hipster IDE choices, and add some lines to pytest.ini so just running
`py.test` uses some useful flags
When creating or updating an organisation an itegrity error is raise if the name is already used.
This change adds a new error handler for the organisation to catch the named unique index and return a 400 with a sensible message.
We have an other error handler for unique service names which was caught in the error handler for all blueprints. A new error handler for the service_blueprint has been created for catch those specific unique constraints.
This is a nice way to encapulate the specific errors for a specific blueprint.
