message: bump to 0.7.0
diff: @@ -6,7 +6,7 @@ repository = "https://github.com/twistedfall/opencv-rust"
  readme = "README.md"
  keywords = [ "opencv", "vision" ]
  license = "MIT"
  -version = "0.6.0"
  +version = "0.7.0"
  edition = "2018"
  authors = ["Mathieu Poumeyrol <kali@zoy.org>"]
  build = "build.rs"
  