Create GUI mock-up for HistoryFrame and TransactionMaster
Create a session class
 - Will allow for modifying models with the option of refreshing the database if the user decides not to save changes
Get rid of MDI Form
Add filtering to HistoryFrame
Add before and after calculations to TransactionMaster
Transaction History Frame Rework
 - Add Validate button/dialog pair to TransactionMaster
 - Center the notes and ticket list in the expanded view of TransactionMaster
 - Convert the view into a more accordion-like structure, so when one view expands it collapses the others
 - Remove useless dialogs
Add setting for summary frame splitter position
Show more appropriate information on history page
Rename Shell for less confusion
Add autocompletion to Brief field
Prevent duplicate tickets
Fix tab order
Fix sorting by confirmed to include unconfirmed entries