Input checking is not sufficient on game entry and edit

[GoogleCodeExporter]

Need to fix edit round to treat blank fields as zeroes.

Original issue reported on code.google.com by ajlyon on 9 Feb 2010 at 7:25

[GoogleCodeExporter]

Proximal issue fixed (r92) -- now games can be edited and fields left blank. 
Issue of
inconsistent and incomplete input checking remains.

Original comment by ajlyon on 10 Feb 2010 at 6:30

• Changed title: Input checking is not sufficient on game entry and edit
• Changed state: Started
• Added labels: Priority-Medium
• Removed labels: Priority-High