graphite.py - remove arguments height width prefix

They are no longer needed as they now all come from
settings.py
Update unit tests for graphite
Update unit tests for graphite
graphite.py - title -> settings.graphite_title

title is now also configurable from settings.py
settings.graphite_querystring -> /misc/settings

Added graphite_querystring into adagios.conf and into
/misc/settings.

Same applies for graphite_title which is now configurable as well