#78 Streamline series display code

[Ahasuerus]

Streamline series display code. The problems are:

1. It uses direct database queries instead of the User class.
2. It queries the database multiple times to get series metadata.
3. It passes series ID and a list of author IDs to displayTitle which expects author ID and a list of IDs of titles which have collaborators.

[Ahasuerus]

Implementing in:

biblio/pe.py 1.29
common/seriesClass.py 1.7

Installed in r2014-436 on 2014-12-06. Closing.