Improve error messages in create_carray (Closes: gh-741)
Improve error messages in create_carray (Closes: gh-741)

FrancescAlted/PyTables,avalentino/PyTables,FrancescAlted/PyTables,FrancescAlted/PyTables,avalentino/PyTables,PyTables/PyTables,PyTables/PyTables,avalentino/PyTables,PyTables/PyTables