Topic: 0.6.0 released

0.6.0
- Initial support for banking
- Download transactions using built-in web browser
- Added IRR to performance tool
- Correct for negative cash in investment portfolios
- Sort portfolio names
- Improved speed of creating/deleting portfolios
- Corrected ameritrade OFX info
- Fixed small bug when downloading stock data
- Fixed threading bug in ofx debugging frame- Fixed bug in auto updater causing it to stop updating if it caught an exception