Support VS R60+

Author: Ichunjo

Diff for: README.md

@@ -11,6 +11,6 @@ pip install vsmask
 ```
 
 # Dependencies 
-The only hard dependencies are vsutil and an installation of VapourSynth R60.
-**Only R60 is supported. Any package that depends on vsmask and supports above R60 will be responsible for its own mistake.**
-However, for full functionality, you should make sure to also install [TCanny](https://github.com/HomeOfVapourSynthEvolution/VapourSynth-TCanny), [TEdgeMask](https://github.com/dubhater/vapoursynth-tedgemask), [AWarpSharp2](https://github.com/dubhater/vapoursynth-awarpsharp2) and [AWarpSharp2SF](https://github.com/IFeelBloated/warpsharp).
+The only hard dependencies are vsutil and an installation of VapourSynth R60 or higher.
+However, only R60 has been tested, if breakings changes happen in a newer version, please make an issue.
+For full functionality, you should make sure to also install [TCanny](https://github.com/HomeOfVapourSynthEvolution/VapourSynth-TCanny), [TEdgeMask](https://github.com/dubhater/vapoursynth-tedgemask), [AWarpSharp2](https://github.com/dubhater/vapoursynth-awarpsharp2) and [AWarpSharp2SF](https://github.com/IFeelBloated/warpsharp).

Diff for: requirements.txt

@@ -1,2 +1,2 @@
-VapourSynth==60
+VapourSynth>=60
 vsutil~=0.8.0