Finish cleaning dependencies

token.go

@@ -3,5 +3,12 @@ package budgeteer
 // Token contains data that authenticates a user
 type Token interface {
 	GetUsername() string
-	GetExpiry() int
+	GetName() string
+	GetExpiry() float64
+}
+
+// TokenVerifier verifies a Token
+type TokenVerifier interface {
+	VerifyToken(string) (Token, error)
+	CreateToken(string, string) (string, error)
 }