fix for foo is typing.. not always showing
Index the database via an auto-incrementing key rather than the email address
Opening a conversation window should collect a contact like it used to
Merge pull request #398 from hardfire/scrollTypingMessage

fix for foo is typing.. not always showing

r=@n1k0
For the auto increment index, add an id field so that we can track contact ids
fixed test lint issue
Merge pull request #407 from Standard8/contactsdb_generator

Make contactsdb use an auto-incrementing index, and start collecting contacts on open window again

r=@n1k0