Fix for names bug

Implements change to comment filter to use mysql_real_escape_string instead of addslashes, which is much more tolerant of specific conditions of the connection, encoding used etc.

* Fixes #20.
* Fixes #122.

## To Do

* [ ] Solve problem of MPs with multiple names entering a loop of doom back to the choice page.

## Finishing

* [ ] Rebase branch and tidy things up.