Fix for WK-56: Error in Dovetail RDF generation using the new API
Fix for WK-58: Karma executes the wrong PyTransform command

Handle the Previous Transformation Command by looking in the History
object instead on relying on prevCommandId variable.
Fix for WK-58: Karma executes the wrong PyTransform command

Makes sure that the previous command from history is from the same
worksheet
WK-58: Karma executes the wrong PyTransform command

Do previous command comparison on id alone and not onname as nested
table columns could have the same name
Fix WK-56 and WK-58, exception in SRI API and incorrect handling of multiple PyTransform commands in the history
Merge branch 'development'
WK-58: Karma executes the wrong PyTransform command

For Submit Py Transform, so not try to restore values if the column
name is unique.
Really fix Wk-58
Merge branch 'development'
Remove print statements
Remove warning.
Removed previousCommandId from SubmitEditPyTransform
Merge remote-tracking branch 'upstream/development' into development
format all cleaning code
Merge pull request #52 from areshand/development

Merge Bo's code.
Merge branch 'master' into development
remove two warnings
Merge pull request #53 from areshand/development

remove two warnings
temporary fix to service invocation command
bug fix in exporting graphs to graphviz