miscelaneous code for testing purposes

Douglas Andreani aacc9618b8 all: several makefile corrections and organization steps 5 rokov pred
go-music b44fe411af go-music: remove unecessary files 5 rokov pred
libpng cefa4e0c5c libpng: add error handling to non existing file 5 rokov pred
pthread aacc9618b8 all: several makefile corrections and organization steps 5 rokov pred
queue_thread_model ef3e64cec5 changes to output on q_thread_model 5 rokov pred
unchat e86175a568 unchat: initial development 5 rokov pred
x11-random aacc9618b8 all: several makefile corrections and organization steps 5 rokov pred
.gitignore aacc9618b8 all: several makefile corrections and organization steps 5 rokov pred