Added python modular examples (log-det)
Fix memory leaks and indentation in structured labels unit test
Fix a bunch of leaking unit tests
and disable ref calls when reference counting is disabled
Merge pull request #1627 from iglesias/fix/leak/structured_labels_unittest

Fix memory leaks and indentation in structured labels unit test
Merge pull request #1602 from lambday/feature/log_determinant

Added python modular examples (log-det)
Fix memory leak in LinearMulticlassMachine issue #1629
-added UNDEFINED cases in data type enums to avoid unpredictable behaviour.
-Many switch statements did not handle default, fixed that
SparseMatrixOperator memory leak fixed
Merge pull request #1632 from lambday/feature/log_determinant

SparseMatrixOperator memory leak fixed
-added enums to is_empty check of SGParamInfo
-to_string method now doesnt throw an error when data types are undefined
same as before
Merge pull request #1631 from karlnapf/develop

added undefined cases for data type enums
WIP: adding complex64_t <-> numpy complex mapping (issue #1493)
convert more examples to CSVFile
fix rational quadratic
Random kitchen sinks