teiiddes-1647: Corrected default ns logic
TEIIDDES-1723: Fixes rename action appearing for eObjects

* ModelExplorerResourceNavigator
 * The rename action is capable of handling both eObjects and resources
   hence little point in bringing in an alternative action from the
   ModelerActionService.
 * However, the refactor sub-menu is necessary for refactoring resources
   (since they can be moved as well) so when a resource is selected, the
   refactor sub-menu is displayed and only the rename action displayed for
   seleted eObjects.

* ModelerActionService
 * Removes the getRefactorMenu method since its functionality has been
   taken into the ModelExplorerResourceNavigator.
Merge pull request #156 from tejones/teiiddes-1647

TEIIDDES-1647
TEIIDDES-1667 Ability to define UDF with vararg
Merge pull request #157 from mdrillin/TEIIDDES-1667

TEIIDDES-1667
TEIIDDES-1715 using item.getStatus().getMessage() instead of item.toString()
TEIIDDES-1714 added null check
TEIIDDES-1662 Transformation Diagram does not show all sources in relational view model
Merge pull request #158 from mdrillin/TEIIDDES-1662

TEIIDDES-1662 Transformation Diagram does not show all sources
TEIIDDES-1661 Cannot bind function to column in ReconcilerPanel
Merge pull request #159 from mdrillin/TEIIDDES-1661

TEIIDDES-1661 Cannot bind function to column in ReconcilerPanel
TEIIDDES-1733: Fix incorrect logic in action override

* Incorrect logic causes illegal argument exception
TEIIDDES-1701: More bug fixes for refactoring

* AbstractResourceCompositeChange
 * Sequences of changes may recreate deleted resources, hence until the
   change to recreate a resource is actually performed it does not exist
   yet hence cannot be unloaded

* AbstractResourcesRefactoring
 * Convenience VdbResourceCallback for sub-classes to extend since all
   index a vdb by add the same change
 * addTextChange method that only adds the change if it has been populated

* MoveResourcesRefactoring
* DeleteResourcesRefactoring
* RenameResourcesRefactoring
 * Modify the callback to extend VdbResourceChange
 * Makes explicit when PathsPairs are modified from being absolute to being
   relative
 * Simplifies and unifies calculating logic

* RefactorResourcesUtils
 * Modify getRelativePath to simplify and consider alternative use-cases
 * Breaks up calculatePathChanges to separate relativsing path pairs and
   check them against the model files
 * Adds calculateImportChanges method for updating import statements when
   a view model is moved

* TestRefactorResourceUtils
 * Adds more tests addressing getRelativePath

* MoveResourcesWizard
 * Do some more checks on the selection before allowing the wizard to go
   forward
Merge pull request #160 from phantomjinx/master

Fixes some refactoring / menu issues
TEIIDDES-1727: Remove 'show translators' option

* As per suggestion on jira, the translators are a permanent feature of a
  teiid server so little point in hiding them, especially as the current
  hiding mechanism is imperfect in its logic.
Merge pull request #161 from phantomjinx/master

Remove 'hide translators option'
Added Teiid DDL samples
Merge pull request #162 from mdrillin/master

Add Teiid DDL samples to importer test project
TEIIDDES-1669 resolves issue with missing datatype for functions
TEIIDDES-1735 added check for no TABLE_REFERENCE_REFERENCES properties