support construct v2.10.68 ?

[shearer12345]

I'm using construct v2.10.68 and would love to try out construct-editor, but currently construct-editor (0.0.19) depends on construct (2.10.67)

Would supporting that be as easy as bumping construct==2.10.67 to either construct==2.10.68, or construct>=2.10.67 in requirements.txt? I can drop a PR if you like.

Thanks so much