Use instanteneous balance for timestamping
Change development database to postgres
Bump assets for new version of lazy_high_charts
Add RackMiniProfiler to all environments
Add pg to general gemfile space
Perform balance/deposit/withrdrawal calculation in PG
Don't do inline balance for events listing page

This breaks the timestamped graph currently though...
Paginate events on accounts page
Avoid forcing a query for taglist for each partial

Make the DB do the string aggregation of the tags for each event when
requesting the events, rather than querying it for each event.
Add kaminari initializer to allow tweaking
Raise paginates_per for events to 100
Preload period weighting information
Add pagination to periods
Change some todos
Move work for period balance/in/out to database
Get optimized taglist for periods
Make totalIn/totalOut exclude 'internal'
Flip sign of totalOut to be positive
Don't limit period pagination so low
Add breakdown of accomodation, cash to out