API: Move 'Library' Methods Into Own File
API: Add Total Value of Library Over Time

Uses the shiny MongoDB aggregation framework.

#18
Show Collection Value Chart in Settings View

#18
User Creation Date as Timestamp
Prematurely Optimize Some Unimportant Code

Actually, I was curious how expensive the creation of a Date really is.
I've run into some performance problems because of this once.

http://jsperf.com/test-if-date-or-create-new
Add Option To Show Value Stats Per Book

#18