Fix itsdb.Table uncommitted record retrieval
Fix itsdb.Table uncommitted record retrieval

Before only records for the number of lines in the file would be
returned, so any additional records would not be retrieved. I think
the opposite problem is still there: when the in-memory table is
smaller than the file.

This commit also allows itsdb.make_row() to take tuples to be made
into rows. Before only things with `get()` methods would work (like
dicts or Records).

delph-in/pydelphin,goodmami/pydelphin