Issues with dep due to outdated semver tag

[marksost]

Hey there! First - thanks so much for Cobra, it's great!

I ran into a small issue with using Cobra and dep recently, centered around the current 0.0.2 tag and it's being out of date with the latest in master.

When running dep init on a repo that uses Cobra, the following constraint gets added to the Gopkg.toml file:

[[constraint]]
  name = "github.com/spf13/cobra"
  version = "0.0.2"

That tag points to this commit a1f051b, however I'm using the FParseErrWhitelist property of the cobra.Command struct, which wasn't added until #662

I've gotten around this in dep by updating the constraint to point at the latest revision like so (I could also point it at the master branch, assumedly):

[[constraint]]
  name = "github.com/spf13/cobra"
  revision = "615425954c3b0d9485a7027d4d451fdcdfdee84e"

but was wondering if we could get a 0.0.3 tag added that includes all of the latest commits?

[eparis]

why not.

[marksost]

Thanks @eparis!