Old style version negotiation shall always return capabilities.
Re-adding versions attribute to handler.
Adjusting WMS capabilities.
Move content of __init__.py to base.py.
Updating autotest submodule.
Move visible checks.
Moving common handle() method in WMSGetCapabilitiesHandlerBase.
Adding visible coverages and other adjustments in WMS capabilities.
Adding Class and Style to mapserver.py.
Removing old encoders. Various adjustments.