- Update to version 2.1.1
* a regression introduced in 2.1.0 caused the jack audio driver
to not correct a sample-rate mismatch
* pkg-config is now being to used to find readline
* fix various typos in the documentation
* fix a memory leak in the file renderer
* fix leaking memory when sequencer clients were not explicitly
unregistered
* fix a heap-based use-after-free in jack driver
* fix the linker possibly not finding libinstpatch