Godeps/_workspace/src/gopkg.in/mgo.v2/session.go
func (bi *BuildInfo) VersionAtLeast(version ...int) bool {
	for i := range version {
		if i == len(bi.VersionArray) {
			return false
		}
		if bi.VersionArray[i] < version[i] {
			return false
		}
	}
	return true
}
func (bi *BuildInfo) VersionAtLeast(version ...int) bool {
	for i := range version {
		if i == len(bi.VersionArray) {
			return false
		}
		if bi.VersionArray[i] < version[i] {
			return false
		}
	}
	return true
}
// VersionAtLeast returns whether the BuildInfo version is greater than or
// equal to the provided version number. If more than one number is
// provided, numbers will be considered as major, minor, and so on.