Inconsistent behavior on printing

[pri22296]

>>> from beautifultable import BeautifulTable
>>> table = BeautifulTable()
>>> table.append_row([1])
>>> table.pop_row()
>>> print(table)
+--+
|  |
+--+
+--+
>>> table.append_row([1])
>>> table.pop_column()
>>> print(table)
+
||
+
+

[pri22296]

Realized that deleting a row does not clear the column's metadata and it should not. User should continue expecting older column's meta to work. However as discussed in issue #10 , Nothing should have been printed in both these cases.