[#19] Disable turbolinks as it isn't working yet
[#19] Use last added date for quick-add instead of today.
[#19] #pretty_date works with times; more concise.
[#19] Split dashboard in two: just_added and by_week.

The category summation on the left was quite useless, and being able to
see expenses in the order they were added is useful for quick-add.

LIMITATIONS

* Breaks viewing transactions by month
* Design needs work - tables too wide
[#19] The date input looks green when successfully parsed.