Change the savings and deposits responses to string

Deposit Product audit conversion

Deposit Account Audit Conversion
wip: updates to accounting documentation
Merge remote-tracking branch 'madhukar/MIFOSX-144-Final'
remove warnings for unused code, formating in savings area.
code formatting.
code cleanup and renaming entry date in journal entries
MIFOSX-172: wip - support for loan disbursal and undo with reversing transactions.
mifosx-172: wip - support adjust transaction for accounting.