threading: Release 0.1. 

uasyncio: Release 1.2. 

machine: Release 0.2.1. 

optimize_upip.py: Script to optimize archives for low-heap upip usage. 

uasyncio.core: Protect another case of debug logging with "if __debug… …__:".

uasyncio: test_http_server_heavy.py: Comment out mem_info() call. 

logging: Release 0.1. 

Tag v0.1 to help with OpenWRT packaging.