SentenceActionParam workaround - reference move from "Communication" to "Action"

During work on Sentence analysis view I found problem with observing content of 
the "Action parameter box". 
When action type with action params (from system, to system, internal) was 
selected everything was OK.
But when action without was selected (abort, goto, ...) boxes started to 
overlap and action params were not changing on use case step selection.

This was caused by EMF databinding which observed value of the action params 
and tried to find action params in actions without this feature.

I was not able to find any "clean" solution so I moved "action param" reference 
from "Communication" class to the super type "Action".

I will try to find better solution to this workaround.

Original issue reported on code.google.com by jiri.vin...@gmail.com on 25 Nov 2011 at 12:34

luisandresilva / reprotool

SentenceActionParam workaround - reference move from "Communication" to "Action" #67