MAGMA-OPAL-2075 - throw exception if the type of a question is NULL
Merge pull request #49 from kazoompa/MAGMA-OPAL-2075

MAGMA-OPAL-2075 - throw exception if the type of a question is NULL
Datasource update listener added.
MAGMA-OPAL-2075 - added VARIABLE LABELS type
Merge pull request #50 from kazoompa/MAGMA-OPAL-2075

MAGMA-OPAL-2075 - added VARIABLE LABELS type
Move Magma dialect from Opal to Magma
onRename added to table update listener
on variable Rename added to table update listener
Upgrade Gradle
Add logger
When deleting documents from value_table collection, must use the ObjectId as the key value and not a string
Merge pull request #51 from kazoompa/bug-MAGMA-OPAL-2058

OPAL-2058
Fixing ConcurrentModificationException when deleting valueTables