Frontend: prototype

For test, You __MUST__ insert some rows in `works` table.

Start server
```console
$ cliche runserver -c dev.cfg.py
```
Start server with reloader and debug mode
```console
$ cliche -c dev.py runserver -rd
```
You can try to access http://localhost:5000/ and http://localhost:5000/work/ and http://localhost:5000/work/`title_name` (You __MUST__ insert some rows in `works` table)
```
username=# \c cliche_db
cliche_db=# insert into works values (1, 'mimi', now(), '1', '1', null, now());
```
Why do you traverse by yourself?  Please carefully read the docs of `.text_content()`.

Plus, it still provide any useful information about delta between the expectation and its actual behavior: just “it is not `True` but `False`.”