Fixed formatting of description in setup.py.
Added example parserclass_debugstring.py.
Bugfix: crashed when record list was not terminated with b'\x1a'.

(Bug first apperad in 1.0.2 after a rewrite.)
bugfix: memo fields with no value were returned as ''.

They are now returned correctly as None.
Bugfix: field header terminaters were compared with strings.
Edited some code for clarity.
Updated changelog.
Bumped version to 1.0.4.