Poll: Supported Go versions

[GeertJohan]

What versions of Go do we want to support?

I would be in favor of the last 2 minor releases, right now that is: go1.3.x and go1.4.x. When go1.5 is released, we will support go1.4.x and go1.5.x.
Go has a great compatibility promise. Upgrading to a newer version of go is never really an issue, so most projects using gorp won't have trouble staying up-to-date.

Please comment.

Notify top contributors and new maintainers: @coopernurse @robfig @sqs @nelsam @sqdk @begizi @benprew

[sqdk]

Sounds good to me!

[GeertJohan]

Some backstory: this issue originates from #224, where @sqdk noticed that the go1.1 build fails because go-sql-driver/mysql uses a function introduced in go1.2.

[nelsam]

I agree with supporting the latest two versions. Anything more than that is going to hit us with some pretty ugly limits in the future.

[GeertJohan]

This poll has been open long enough. I suggest we go ahead with implementing these changes. I'll open a PR.

[GeertJohan]

PR is #234 (which is a pretty nice number since it's introducing travis checks for go 1.2, 1.3 and 1.4 😄 )