Turns out that we store these values as int(11) in MySql.
The 11 is irrelevant and pertains to display. int is a 4 byte
(aka 32 bit) integer. So this maps to a .NET Int32 (aka int).
While changing keeping it long might be future proofing, it also
requires changes to GHfW and I figure let's jump that hurdle
when we get there.
Per @technoweenie's recommendation, this value is innaccurate and
useless. It doesn't factor in git alternates etc.
Calculating a better value is expensive.
