[pymapistore]: Add sanity checks when listing capabilities and remove a segfaulting `talloc_free`
[pymapistore]: Remove out of range check in delete_attachment (attachment IDs aren't necessarily sequential anymore)
[mapistore-python][rest.py]: Use MAPIStore table types and errors instead of magic values
[mapistore-python][rest.py]: Remove unnecessary temporal dictionaries
[mapistore-python][rest.py]: Fix message count update in message save
[mapistore-python][REST]: Correct argument modification
[mapistore-python][REST]: Name corrections in message tests
[mapistore-python][REST]: Correct trailing commas in kissDB
[mapistore-python][REST]: Correct `_encode_restrictions` (naming & return value)
[mapistore-python][REST]: Add description of the parameters in kissDB.py