fold: use 'fold', not 'touch', for transaction description

tests: fix tests to reflect hg core changes In f05ede08dcf7d13794ccc9abb53877a50bf2b58b in core hg there were changes to changeset_printer.

prune: improve error message if unstable changes are disallowed I saw a question on stackoverflow why evolve reports something like cannot fold chain not ending with head. Even I was confused the first time about the behavior. The error message can be improved to avoid confusion to people who are unaware about the config in future.

wireproto: chunking and compression is forthwith to be handled by hgweb Various functions disappeared in the process. Use the new streamres API but fall back to the old way if the keyword arguments are not accepted. See https://www.mercurial-scm.org/repo/hg/rev/2add671bf55b

readme: fix the test run command As we use the run-tests.py in Mercurial, we do not need to specify the path to a Mercurial utility.

Manifest.in: exclude unshipped extensions Many extensions life in the repository without being shipped we exclude them from the dist tarball.

Manifest.in: include Manifest.in Apparently this file should be in the tarball.

Manifest.in: exclude debian related file The debian rules life in the repository for convenience, however they should not be included in the dist tarball.

Manifest.in: include all script in tests We now have a small fake editor scrip that should be in the dist tarball.

Manifest.in: drop tests/test-qsync.t entry This file is now longer in the repository.