output: Add NullPrinterTest
ConsoleOutputter: Add missing __init__ invocations
output: Add OutputterTest
output: Add ConsoleOutputterTest
ConsolePrinter: Pass file for colorized output too
ConsolePrinterTest: Check output
setting: Add SettingsFiller
settings: Add SettingsFillerTest
outputter: Output origin of needed setting

If a setting is needed there is an analyzer who needs it. Lets show it
to the user.
SettingsFiller: Rename 'filters' to 'analyzers'
helpers: Add LineResult