DynamoDS/Dynamo — pull request #2642 by theanh0512 (2014-10-08 10:32:17+00:00)
Title: Fixed issue: Magn4944

Issue: http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-4944
Nodes that have "+" and "-" now by default are created with 1 input. (before 0).
@aparajit-pratap please help me to review it.