association navigability

[wrobell]

when connecting use case and actor with an association
then the navigability of association ends is set by default
to 'navigable'.

it is an issue because most of the associations on my use
case diagrams have unknown navigability or known navigability
only towards a use case, so i have to put extra work to change
the navigability. see also

http://images.google.com/images?oe=UTF-8&q=use%20case%20diagram&um=1&ie=UTF-8&sa=N&hl=en&tab=wi

above applies as well to associations set between nodes (deployment
diagrams).

therefore, i would change default navigability to 'unknown'. this would help
with rapid prototyping on class diagrams (i.e. set navigability to navigable
if you are sure that one class knows about the other one)

[wrobell]

fixed as agreed