Documentation of what is actually changed vs. DotNetZip missing

[JashanChittesh]

In the readme, it says:

This is a stripped-down version of DotNetZip (no BZip2/GZip support for now)
with some fixes so it can be used on Unity projects, including those that target Android and iOS.

Given that this project seems to not be very active, documenting what changes are actually necessary would be very helpful, probably even more than the code itself.

Doing some research, I just found this (last answer in the thread seems to be everything that needs to be changed): https://forums.xamarin.com/discussion/340/dotnetzip-with-monotouch