Added simple way to filter links by person names.

Added database of USA names for doing this.
Improved filter of link names. Added filter to view.
Added concept of problem and started using it.
Improved backend end frontend of game.

- Added database models and initial fixture
- Added translations strings
- Added final page with results
names from wikipedia Liste von Vornamen added
Merge branch 'filter_by_names' of github.com:mophahr/wikipediaGame into filter_by_names
Fixed path of names file to be system-independent.
Put database in subdirectory to restrict write access to it.

This is backward incompatible because is a security issue.
To migrate, do:
1. mkdir database
2. either copy the db.sqlite3 to database/db.sqlite3 or run
   python manage.py syncdb
Added translatation files.
Fixed error on computing path length.

Also enabled protection against cheating.
Update django.po
Fixed #12 -- Added multilanguage support.

    EN and DE implemented.
Removed possibility to directly go to end page.
Restarting the game no longer restarts the language.
Added setting to Django find translations.
Reaching the end now restarts the game (on the server side).
Update django.po
Update django.po
Update django.po
Update django.po