Merge pull request #4 from fbsbittencourt/master

fix directory loading error /static/ at settings
defined initial balance when bank is created
Added Balance Manager and update balance when create a new Entry
set initial balance when create a new bank
allowing discharge entry in entry list
allowing person field blank in entry model
closes or reopen discharge in entry in entry list
added TODO Session in README.md
Merge pull request #1 from edgabaldi/master

merge edgabald change