Log Message:
Update to 0.15.2:

v0.15.2 (2015-06-28)
======================
	-- fix rgb encodings can use speed setting
	-- fix propagation of dynamic attributes for OR windows
	-- fix invalid warnings in parsing client connection options
	-- fix handling of the window decorations flag
	-- fix missing lock around Python logger callback
	-- fix size-hints with shadow servers
	-- fix max-size switch
	-- fix sound process communication errors during failures
	-- fix invalid options shown in default config file
	-- add missing file to clean list
	-- skip unnecessary workarounds with GTK3 client
	-- cleaner thread cleanup on server exit
	-- use the safer and slower code with non-OpenGL clients