Fixed bug in async initialisation
Use writer API in pool instead of fprintf
Write number of threads to log
Add a key-value parser since getsubopt doesn't work on Windows
Add documentation about -A switch
Add missing public to get_api_version
Automatically determine the number of threads
Write more to logs rather than stderr
Fix loop bounds bug in B-cliff masking
Add vprintf methods for writer and logproxy
Allow access to logging in the plugins/modules
Fix async reader hang on destroy

Correctly exist if the async reader is destroy without any input being consumed.
Fix LTDL unreferencing bug

Non-loaded modules would incorrectly decrement the LTDL reference count,
causing breakage of still-loaded modules.
Fix mangled name in VAPI for LogProxy.write_str