Remove the "config parameters" from Mounter methods
Remove the "config parameters" from Mounter methods

It is enough to initialize prompt/filter/browser once at object
creation or modify them later by attribute access. This keeps these
"environment variables" more cleanly separated from the action
parameters that the Mounter.XXX methods need.

coldfix/udiskie,coldfix/udiskie,khardix/udiskie,mathstuf/udiskie,pstray/udiskie,pstray/udiskie