Bugfixing BS440csv.py
Bugfixing BS440csv.py

Some fixes to have BS440csv run well in the new plugin system
-personID is received from BS440 as a string
-add self as first parameter
-ask os for local directory where plugin runs. Use that as base for
retrieving/writing CSV
-initialize csvlist. This would fail when no csv is there at first run
-indenting codeblock where csv gets written

keptenkurk/BS440,keptenkurk/BS440,keptenkurk/BS440