Invalid table structure passes validation

```
# Steps to reproduce:

1. In Sigil, include a table in an epub with a but no

One

Two

A

B

C

D

2. Run Flightcrew validation.

Flightcrew passes this as valid (Flightcrew validation in Sigil 0.8.4 on
Windows 7). This is incorrect. EpubCheck on validator.idpf.org produces these
errors:

> Results: The following problems were found in table-test-validation.epub:
>
> Type File Line Position Message
> ERROR OEBPS/Text/Section0001.xhtml 20 9 element "tr" not allowed here;
expected element "tbody" or "tfoot"
> ERROR OEBPS/Text/Section0001.xhtml 26 9 element "tr" not allowed here;
expected element "tbody" or "tfoot"
> ERROR OEBPS/Text/Section0001.xhtml 31 11 element "table" incomplete; missing
required element "tbody"
> Validated using EpubCheck version 3.0.1.

```

Original issue reported on code.google.com by `arthurat...@gmail.com` on 3 Mar 2015 at 12:51

Attachments:
- [table-test-validation.epub](https://storage.googleapis.com/google-code-attachments/flightcrew/issue-46/comment-0/table-test-validation.epub)