LSP Plugins 1.1.9 released!

This is mostly a hot-fix release for regressions occurred in a 1.1.7 release. Anyway, there are also some couple of new changes:

• Added experimental support of AArch64 architecture (DSP code is not optimized yet).
• Fixed regression in VST and Standalone plugin formats that caused offline tasks to
  not to be launched.
• Improved build system to make source code possible to build for KXStudio repository.
  Distribution builders should ensure that the GNU C++ compiler is selected at the build
  stage.
• Additional I/O improvements for better WindowsNT support.