version bump to 0.6.0-pre7
[package]
name = "flapigen"
-version = "0.6.0-pre6"
+version = "0.6.0-pre7"
authors = ["Evgeniy A. Dushistov <dushistov@mail.ru>"]
description = "Tool for connecting libraries written in Rust with other languages"
license = "BSD-3-Clause"
