Drop MacroTools dependency

[oxinabox]

Its not worth depending on MacroTools and thus anything it depends on (DataStructures & OrderedCollections)

For this simple function.

I also think this implementation of the function is better,

[oxinabox]

Last release was 0.2.1
so this is good to tag once this is merged

[devmotion]

I also think this implementation of the function is better,

Do you mean this implementation of postwalk should be used by MacroTools as well?

[oxinabox]

Do you mean this implementation of postwalk should be used by MacroTools as well?

I was mostly being facecious, because its a 2 line function so how can one do it "better".
Though I do fine MacroTool's harder to read because it abstracts prewalk and postwalk into a single walk inner function.

[devmotion]

Yes, I agree that your implementation is definitely easier to understand 👍

[devmotion]

@ChrisRackauckas, can you merge the PR? I don't have write access.

[ChrisRackauckas]

oh you don't? I thought you did.

[devmotion]

I was also surprised 😛