Maintenance branch

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@11411 bf327186-88b3-11dd-a302-d386e5130c1c
Attempt to correct version numbers

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@14303 bf327186-88b3-11dd-a302-d386e5130c1c
T2-2102 Remove result listener BEFORE calling receiveResult

Avoids starting new invocation of same workflow before we finish 
(at least assuming there is no paralell jobs over this Dataflow)

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@16019 bf327186-88b3-11dd-a302-d386e5130c1c
Make dataflow.setImmutable() before validity check

This avoid repeated executions (such as in iterations) to 
re-check validity when creating facade.

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@16020 bf327186-88b3-11dd-a302-d386e5130c1c
Avoid silly import from impl

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@16033 bf327186-88b3-11dd-a302-d386e5130c1c
Increased version numbers

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@16048 bf327186-88b3-11dd-a302-d386e5130c1c
Changed how completion is detected as per T3-986

git-svn-id: http://taverna.googlecode.com/svn/taverna/engine/net.sf.taverna.t2.activities/branches/maintenance/dataflow-activity@16484 bf327186-88b3-11dd-a302-d386e5130c1c
added gitignore
added README
Used Taverna Parent and bumped number
added <repository> and <scm>
Merge branch 'maintenance'.