Removed tutorial for accessing DB

Will be re-added later.
Moved story_list() method to story.py
Merge branch 'database' of https://github.com/ncss-2014-group-3/word-by-word into database
Made all attributes attributes

Made all attributes attributes over functions for database methods
Fixed bug finding story by id
s

s
Fixed some database bugs
Implemented users in Database
Merge branch 'database' of https://github.com/ncss-2014-group-3/word-by-word into database
Removed old database file
Fixed users implementation for database init
Merge branch 'database'

Conflicts:
	database/story.py
	database/word.py