Added _get_compression_ratio method to VLArray class.  This still needs tests, especially with VLArrays of type ObjectAtom, where it's unclear how the compression ratio should be defined.
Added _get_compression_ratio method to VLArray class.  This still needs tests, especially with VLArrays of type ObjectAtom, where it's unclear how the compression ratio should be defined.

cpcloud/PyTables,joonro/PyTables,dotsdl/PyTables,jack-pappas/PyTables,rabernat/PyTables,jennolsen84/PyTables,rdhyee/PyTables,cpcloud/PyTables,gdementen/PyTables,mohamed-ali/PyTables,jack-pappas/PyTables,PyTables/PyTables,tp199911/PyTables,gdementen/PyTables,jennolsen84/PyTables,FrancescAlted/PyTables,rabernat/PyTables,rabernat/PyTables,dotsdl/PyTables,rdhyee/PyTables,dotsdl/PyTables,joonro/PyTables,avalentino/PyTables,jack-pappas/PyTables,avalentino/PyTables,tp199911/PyTables,tp199911/PyTables,cpcloud/PyTables,joonro/PyTables,rdhyee/PyTables,dotsdl/PyTables,mohamed-ali/PyTables,gdementen/PyTables,andreabedini/PyTables,jack-pappas/PyTables,cpcloud/PyTables,FrancescAlted/PyTables,joonro/PyTables,avalentino/PyTables,PyTables/PyTables,tp199911/PyTables,rabernat/PyTables,jennolsen84/PyTables,gdementen/PyTables,jennolsen84/PyTables,mohamed-ali/PyTables,andreabedini/PyTables,jack-pappas/PyTables,andreabedini/PyTables,mohamed-ali/PyTables,andreabedini/PyTables,PyTables/PyTables,FrancescAlted/PyTables,rdhyee/PyTables