Added possibility to enter real values with either comma or dot as a separator.
Added jquery-editable with Combodate and Poshytip support.
Added value object for RealValues, capable of creating from any type of real value format (even with embedded spaces).
Added `rowid` attribute to Expense model.
Added method to ExpensesStorage to correct chosen field in given record.
Added the system to easily manage CSS and javascript files from controller. Added route for fields correction. Added X-Editable harness for "date", "price", "amount" and "tags" values.