Didbs 0.1.9 missing libunistring

[danielhams]

Mistake in the 0.1.9 didbs tarball build means you might get references to a missing "libunistring.so" library.

There is a second mini tarball that contains this missing library and docs here that should be extracted at /usr/didbs like a regular tarball.

https://github.com/danielhams/didbs/releases/download/0.1.9/usr-didbs-0.1.9-n32m3gcc-unistringpatch.tar.gz