v5.2.5
Docs: Fix a typo in a comment in doc/examples/02_decompress.c.
Docs: Move xz_pipe_comp.c and xz_pipe_decomp.c to doc/examples_old.
Update the home page URLs to HTTPS.
Docs: Cleanup line wrapping a bit.
Remove doubled words from documentation and comments.
.xz file format specification 1.0.4 (probably).